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Documents authored by Queirós, Ricardo

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Queirós, Ricardo

Document
DOI: 10.4230/OASIcs.ICPEC.2024.11
Client-Side Gamification Engine for Enhanced Programming Learning

Authors: Ricardo Queirós, Robertas Damaševičius, Rytis Maskeliūnas, and Jakub Swacha

Published in: OASIcs, Volume 122, 5th International Computer Programming Education Conference (ICPEC 2024)

Abstract
This study introduces the development of a client-based software layer within the FGPE project, aimed at enhancing the usability of the FGPE programming learning environment through client-side processing. The primary goal is to enable the evaluation of programming exercises and the application of gamification rules directly on the client-side, thereby facilitating offline functionality. This approach is particularly beneficial in regions with unreliable internet connectivity, as it allows continuous student interaction and feedback without the need for a constant server connection. The implementation promises to reduce server load significantly by shifting the evaluation workload to the client-side. This not only improves response times but also alleviates the burden on server resources, enhancing overall system efficiency. Two main strategies are explored: 1) caching the gamification service interface on the client-side, and 2) implementing a complete client-side gamification service that synchronizes with the server when online. Each approach is evaluated in terms of its impact on user experience, system performance, and potential security concerns. The findings suggest that while client-side processing offers considerable benefits in terms of scalability and user engagement, it also introduces challenges such as increased system complexity and potential data synchronization issues. The study concludes with recommendations for balancing these factors to optimize the design and implementation of client-based systems for educational environments.
Cite as

Ricardo Queirós, Robertas Damaševičius, Rytis Maskeliūnas, and Jakub Swacha. Client-Side Gamification Engine for Enhanced Programming Learning. In 5th International Computer Programming Education Conference (ICPEC 2024). Open Access Series in Informatics (OASIcs), Volume 122, pp. 11:1-11:12, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2024)

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@InProceedings{queiros_et_al:OASIcs.ICPEC.2024.11,
  author =	{Queir\'{o}s, Ricardo and Dama\v{s}evi\v{c}ius, Robertas and Maskeli\={u}nas, Rytis and Swacha, Jakub},
  title =	{{Client-Side Gamification Engine for Enhanced Programming Learning}},
  booktitle =	{5th International Computer Programming Education Conference (ICPEC 2024)},
  pages =	{11:1--11:12},
  series =	{Open Access Series in Informatics (OASIcs)},
  ISBN =	{978-3-95977-347-8},
  ISSN =	{2190-6807},
  year =	{2024},
  volume =	{122},
  editor =	{Santos, Andr\'{e} L. and Pinto-Albuquerque, Maria},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/OASIcs.ICPEC.2024.11},
  URN =		{urn:nbn:de:0030-drops-209809},
  doi =		{10.4230/OASIcs.ICPEC.2024.11},
  annote =	{Keywords: Code generation, Computer Programming, Gamification}
}
Document
DOI: 10.4230/OASIcs.ICPEC.2024.19
Exercisify: An AI-Powered Statement Evaluator

Authors: Ricardo Queirós

Published in: OASIcs, Volume 122, 5th International Computer Programming Education Conference (ICPEC 2024)

Abstract
A growing concern with current teaching approaches underscores the need for innovative paradigms and tools in computer programming education, aiming to address disparate user profiles, enhance engagement, and cultivate deeper understanding among learners This article proposes an innovative approach to teaching programming, where students are challenged to write statements for solutions automatically generated. With this approach, rather than simply solving exercises, students are encouraged to develop code analysis and problem formulation skills. For this purpose, a Web application was developed to materialize these ideas, using the OpenAI API to generate exercises and evaluate statements written by the students. The transformation of this application in H5P and its integration in a LMS gamified workflow is explored for wider and more effective adoption.
Cite as

Ricardo Queirós. Exercisify: An AI-Powered Statement Evaluator. In 5th International Computer Programming Education Conference (ICPEC 2024). Open Access Series in Informatics (OASIcs), Volume 122, pp. 19:1-19:6, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2024)

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@InProceedings{queiros:OASIcs.ICPEC.2024.19,
  author =	{Queir\'{o}s, Ricardo},
  title =	{{Exercisify: An AI-Powered Statement Evaluator}},
  booktitle =	{5th International Computer Programming Education Conference (ICPEC 2024)},
  pages =	{19:1--19:6},
  series =	{Open Access Series in Informatics (OASIcs)},
  ISBN =	{978-3-95977-347-8},
  ISSN =	{2190-6807},
  year =	{2024},
  volume =	{122},
  editor =	{Santos, Andr\'{e} L. and Pinto-Albuquerque, Maria},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/OASIcs.ICPEC.2024.19},
  URN =		{urn:nbn:de:0030-drops-209884},
  doi =		{10.4230/OASIcs.ICPEC.2024.19},
  annote =	{Keywords: Code generation, Computer Programming, Gamification}
}
Document
DOI: 10.4230/OASIcs.ICPEC.2024.21
Authoring Programming Exercises for Automated Assessment Assisted by Generative AI

Authors: Yannik Bauer, José Paulo Leal, and Ricardo Queirós

Published in: OASIcs, Volume 122, 5th International Computer Programming Education Conference (ICPEC 2024)

Abstract
Generative AI presents both challenges and opportunities for educators. This paper explores its potential for automating the creation of programming exercises designed for automated assessment. Traditionally, creating these exercises is a time-intensive and error-prone task that involves developing exercise statements, solutions, and test cases. This ongoing research analyzes the capabilities of the OpenAI GPT API to automatically create these components. An experiment using the OpenAI GPT API to automatically create 120 programming exercises produced interesting results, such as the difficulties encountered in generating valid JSON formats and creating matching test cases for solution code. Learning from this experiment, an enhanced feature was developed to assist teachers in creating programming exercises and was integrated into Agni, a virtual learning environment (VLE). Despite the challenges in generating entirely correct programming exercises, this approach shows potential for reducing the time required to create exercises, thus significantly aiding teachers. The evaluation of this approach, comparing the efficiency and usefulness of using the OpenAI GPT API or authoring the exercises oneself, is in progress.
Cite as

Yannik Bauer, José Paulo Leal, and Ricardo Queirós. Authoring Programming Exercises for Automated Assessment Assisted by Generative AI. In 5th International Computer Programming Education Conference (ICPEC 2024). Open Access Series in Informatics (OASIcs), Volume 122, pp. 21:1-21:8, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2024)

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@InProceedings{bauer_et_al:OASIcs.ICPEC.2024.21,
  author =	{Bauer, Yannik and Leal, Jos\'{e} Paulo and Queir\'{o}s, Ricardo},
  title =	{{Authoring Programming Exercises for Automated Assessment Assisted by Generative AI}},
  booktitle =	{5th International Computer Programming Education Conference (ICPEC 2024)},
  pages =	{21:1--21:8},
  series =	{Open Access Series in Informatics (OASIcs)},
  ISBN =	{978-3-95977-347-8},
  ISSN =	{2190-6807},
  year =	{2024},
  volume =	{122},
  editor =	{Santos, Andr\'{e} L. and Pinto-Albuquerque, Maria},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/OASIcs.ICPEC.2024.21},
  URN =		{urn:nbn:de:0030-drops-209901},
  doi =		{10.4230/OASIcs.ICPEC.2024.21},
  annote =	{Keywords: ChatGPT, generative AI, programming exercises, automated assessment}
}
Document
Short Paper
DOI: 10.4230/OASIcs.SLATE.2023.15
Integrating Gamified Educational Escape Rooms in Learning Management Systems (Short Paper)

Authors: Ricardo Queirós, Carla Pinto, Mário Cruz, and Daniela Mascarenhas

Published in: OASIcs, Volume 113, 12th Symposium on Languages, Applications and Technologies (SLATE 2023)

Abstract
Escape rooms offer an immersive and engaging learning experience that encourages critical thinking, problem solving and teamwork. Although they have shown promising results in promoting student engagement in the teaching-learning process, they continue to operate as independent systems that are not fully integrated into educational environments. This work aims to detail the integration of educational escape rooms, based on international standards, with the typical central component of an educational setting - the learning management system (LMS). In order to proof this concept, we present the integration of a math escape room with the Moodle LMS using the Learning Tools Interoperability (LTI) specification. Currently, this specification comprises a set of Web services that enable seamless integration between learning platforms and external tools and is not limited to any specific LMS which fosters learning interoperability. With this implementation, a single sign-on ecosystem is created, where teachers and students can interact in a simple and immersive way. The major contribution of this work is to serve as an integration guide for other applications and in different domains.
Cite as

Ricardo Queirós, Carla Pinto, Mário Cruz, and Daniela Mascarenhas. Integrating Gamified Educational Escape Rooms in Learning Management Systems (Short Paper). In 12th Symposium on Languages, Applications and Technologies (SLATE 2023). Open Access Series in Informatics (OASIcs), Volume 113, pp. 15:1-15:8, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2023)

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@InProceedings{queiros_et_al:OASIcs.SLATE.2023.15,
  author =	{Queir\'{o}s, Ricardo and Pinto, Carla and Cruz, M\'{a}rio and Mascarenhas, Daniela},
  title =	{{Integrating Gamified Educational Escape Rooms in Learning Management Systems}},
  booktitle =	{12th Symposium on Languages, Applications and Technologies (SLATE 2023)},
  pages =	{15:1--15:8},
  series =	{Open Access Series in Informatics (OASIcs)},
  ISBN =	{978-3-95977-291-4},
  ISSN =	{2190-6807},
  year =	{2023},
  volume =	{113},
  editor =	{Sim\~{o}es, Alberto and Ber\'{o}n, Mario Marcelo and Portela, Filipe},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/OASIcs.SLATE.2023.15},
  URN =		{urn:nbn:de:0030-drops-185293},
  doi =		{10.4230/OASIcs.SLATE.2023.15},
  annote =	{Keywords: Escape Rooms, Interoperability, Learning Management Systems, Standardization}
}
Document
Short Paper
DOI: 10.4230/OASIcs.ICPEC.2023.4
Can a Content Management System Provide a Good User Experience to Teachers? (Short Paper)

Authors: Yannik Bauer, José Paulo Leal, and Ricardo Queirós

Published in: OASIcs, Volume 112, 4th International Computer Programming Education Conference (ICPEC 2023)

Abstract
The paper discusses an ongoing project that aims to enhance the UX of teachers while using e-learning systems. Specifically, the project focuses on developing the teacher’s user interface (UI) for Agni, a web-based code playground for learning JavaScript. The goal is to design an intuitive UI with valuable features that will encourage more teachers to use the system. To achieve this goal, the paper explores the use of a headless Content Management System (CMS) called Strapi. The primary research question the paper seeks to answer is whether a headless CMS, specifically Strapi, can provide a good UX to teachers. A usability evaluation of the built-in Strapi UI for content creation and management reveals it to be generally consistent and user-friendly but challenging and unintuitive to create courses with programming exercises. As a result, the decision was made to develop a new teacher’s UI based on the existing Agni UI for students in an editable version. Once the development is complete, a new usability evaluation of the fully developed teacher’s UI will be conducted with the Strapi UI evaluation as a baseline for comparison.
Cite as

Yannik Bauer, José Paulo Leal, and Ricardo Queirós. Can a Content Management System Provide a Good User Experience to Teachers? (Short Paper). In 4th International Computer Programming Education Conference (ICPEC 2023). Open Access Series in Informatics (OASIcs), Volume 112, pp. 4:1-4:8, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2023)

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@InProceedings{bauer_et_al:OASIcs.ICPEC.2023.4,
  author =	{Bauer, Yannik and Leal, Jos\'{e} Paulo and Queir\'{o}s, Ricardo},
  title =	{{Can a Content Management System Provide a Good User Experience to Teachers?}},
  booktitle =	{4th International Computer Programming Education Conference (ICPEC 2023)},
  pages =	{4:1--4:8},
  series =	{Open Access Series in Informatics (OASIcs)},
  ISBN =	{978-3-95977-290-7},
  ISSN =	{2190-6807},
  year =	{2023},
  volume =	{112},
  editor =	{Peixoto de Queir\'{o}s, Ricardo Alexandre and Teixeira Pinto, M\'{a}rio Paulo},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/OASIcs.ICPEC.2023.4},
  URN =		{urn:nbn:de:0030-drops-185004},
  doi =		{10.4230/OASIcs.ICPEC.2023.4},
  annote =	{Keywords: learning environment, programming exercises, programming learning, automatic assessment, headless CMS, CMS, user experience}
}
Document
Short Paper
DOI: 10.4230/OASIcs.ICPEC.2023.5
Sifu Reloaded: An Open-Source Gamified Web-Based CyberSecurity Awareness Platform (Short Paper)

Authors: José Carlos Paiva, Ricardo Queirós, and Tiago Gasiba

Published in: OASIcs, Volume 112, 4th International Computer Programming Education Conference (ICPEC 2023)

Abstract
Malicious actors can cause severe damage by exploiting software vulnerabilities. In industrial settings, where critical infrastructures rely on software, handling these vulnerabilities with utmost care is crucial to prevent catastrophic consequences. For this purpose, a cybersecurity awareness platform called Sifu was created. This platform automatically assesses challenges to verify its compliance to secure coding guidelines. Using an artificial intelligence method, an interactive component provides players with solution-guiding hints. This paper presents an improved version of the Sifu platform, which evolves the tool in the following aspects: architecture, data model and user interface. The new platform separates the server and client-side using a REST API architecture. It also accommodates an intrinsic and richer layer of gamification, which explores the concept of game rooms at an organizational and gamification level. Finally, it offers an improved interactive training experience for individuals and organizations through a responsive and intuitive single-page web application.
Cite as

José Carlos Paiva, Ricardo Queirós, and Tiago Gasiba. Sifu Reloaded: An Open-Source Gamified Web-Based CyberSecurity Awareness Platform (Short Paper). In 4th International Computer Programming Education Conference (ICPEC 2023). Open Access Series in Informatics (OASIcs), Volume 112, pp. 5:1-5:8, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2023)

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@InProceedings{paiva_et_al:OASIcs.ICPEC.2023.5,
  author =	{Paiva, Jos\'{e} Carlos and Queir\'{o}s, Ricardo and Gasiba, Tiago},
  title =	{{Sifu Reloaded: An Open-Source Gamified Web-Based CyberSecurity Awareness Platform}},
  booktitle =	{4th International Computer Programming Education Conference (ICPEC 2023)},
  pages =	{5:1--5:8},
  series =	{Open Access Series in Informatics (OASIcs)},
  ISBN =	{978-3-95977-290-7},
  ISSN =	{2190-6807},
  year =	{2023},
  volume =	{112},
  editor =	{Peixoto de Queir\'{o}s, Ricardo Alexandre and Teixeira Pinto, M\'{a}rio Paulo},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/OASIcs.ICPEC.2023.5},
  URN =		{urn:nbn:de:0030-drops-185014},
  doi =		{10.4230/OASIcs.ICPEC.2023.5},
  annote =	{Keywords: learning environment, cybersecurity, challenges, gamification, automatic assessment}
}
Document
Short Paper
DOI: 10.4230/OASIcs.ICPEC.2023.6
A Gamified Educational Escape Rooms' Framework for Computer Programming Classes (Short Paper)

Authors: Ricardo Queirós, Carla Pinto, Mário Cruz, and Daniela Mascarenhas

Published in: OASIcs, Volume 112, 4th International Computer Programming Education Conference (ICPEC 2023)

Abstract
This paper presents a study on the use of gamified educational escape rooms to foster the teaching-learning process of computer programming, based on an user type taxonomy. The ultimate goal of this work is to identify and validate the most suitable gamification elements and mechanics for each user profile, providing case studies that illustrate their implementation. The main contribution of this work is to guide the design process of educational escape rooms in any domain, by considering the needs, preferences, and motivations of different user types.
Cite as

Ricardo Queirós, Carla Pinto, Mário Cruz, and Daniela Mascarenhas. A Gamified Educational Escape Rooms' Framework for Computer Programming Classes (Short Paper). In 4th International Computer Programming Education Conference (ICPEC 2023). Open Access Series in Informatics (OASIcs), Volume 112, pp. 6:1-6:8, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2023)

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@InProceedings{queiros_et_al:OASIcs.ICPEC.2023.6,
  author =	{Queir\'{o}s, Ricardo and Pinto, Carla and Cruz, M\'{a}rio and Mascarenhas, Daniela},
  title =	{{A Gamified Educational Escape Rooms' Framework for Computer Programming Classes}},
  booktitle =	{4th International Computer Programming Education Conference (ICPEC 2023)},
  pages =	{6:1--6:8},
  series =	{Open Access Series in Informatics (OASIcs)},
  ISBN =	{978-3-95977-290-7},
  ISSN =	{2190-6807},
  year =	{2023},
  volume =	{112},
  editor =	{Peixoto de Queir\'{o}s, Ricardo Alexandre and Teixeira Pinto, M\'{a}rio Paulo},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/OASIcs.ICPEC.2023.6},
  URN =		{urn:nbn:de:0030-drops-185021},
  doi =		{10.4230/OASIcs.ICPEC.2023.6},
  annote =	{Keywords: Escape Room, Gamification, Computer Programming, User Type Taxonomy}
}
Document
Short Paper
DOI: 10.4230/OASIcs.ICPEC.2023.11
Automated Assessment of Simple Web Applications (Short Paper)

Authors: Luís Maia Costa, José Paulo Leal, and Ricardo Queirós

Published in: OASIcs, Volume 112, 4th International Computer Programming Education Conference (ICPEC 2023)

Abstract
Web programming education is an important component of modern computer science curricula. Assessing students’ web programming skills can be time-consuming and challenging for educators. This paper introduces Webpal, an automated assessment tool for web programming exercises in entry-level courses. Webpal evaluates web applications coded in HTML, CSS, and Javascript, and provides feedback to students. This tool integrates with Virtual Learning Environments (VLEs) through an API, allowing the creation, storage, and access to exercises while assessing student attempts based on the created exercises. The evaluation process comprises various subcomponents: static assessment, interface matching, functional testing, and feedback management. This approach aims to provide feedback that helps students overcome their challenges in web programming assignments. This paper also presents a demo showcasing the tool’s features and functionality in a simulated VLE environment.
Cite as

Luís Maia Costa, José Paulo Leal, and Ricardo Queirós. Automated Assessment of Simple Web Applications (Short Paper). In 4th International Computer Programming Education Conference (ICPEC 2023). Open Access Series in Informatics (OASIcs), Volume 112, pp. 11:1-11:8, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2023)

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@InProceedings{costa_et_al:OASIcs.ICPEC.2023.11,
  author =	{Costa, Lu{\'\i}s Maia and Leal, Jos\'{e} Paulo and Queir\'{o}s, Ricardo},
  title =	{{Automated Assessment of Simple Web Applications}},
  booktitle =	{4th International Computer Programming Education Conference (ICPEC 2023)},
  pages =	{11:1--11:8},
  series =	{Open Access Series in Informatics (OASIcs)},
  ISBN =	{978-3-95977-290-7},
  ISSN =	{2190-6807},
  year =	{2023},
  volume =	{112},
  editor =	{Peixoto de Queir\'{o}s, Ricardo Alexandre and Teixeira Pinto, M\'{a}rio Paulo},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/OASIcs.ICPEC.2023.11},
  URN =		{urn:nbn:de:0030-drops-185072},
  doi =		{10.4230/OASIcs.ICPEC.2023.11},
  annote =	{Keywords: Web Applications, Static Assessment, Interface Matching, Functional Assessment, Feedback Manager}
}
Document
DOI: 10.4230/OASIcs.SLATE.2022.4
Generation of Document Type Exercises for Automated Assessment

Authors: José Paulo Leal, Ricardo Queirós, and Marco Primo

Published in: OASIcs, Volume 104, 11th Symposium on Languages, Applications and Technologies (SLATE 2022)

Abstract
This paper describes ongoing research to develop a system to automatically generate exercises on document type validation. It aims to support multiple text-based document formalisms, currently including JSON and XML. Validation of JSON documents uses JSON Schema and validation of XML uses both XML Schema and DTD. The exercise generator receives as input a document type and produces two sets of documents: valid and invalid instances. Document types written by students must validate the former and invalidate the latter. Exercises produced by this generator can be automatically accessed in a state-of-the-art assessment system. This paper details the proposed approach and describes the design of the system currently being implemented.
Cite as

José Paulo Leal, Ricardo Queirós, and Marco Primo. Generation of Document Type Exercises for Automated Assessment. In 11th Symposium on Languages, Applications and Technologies (SLATE 2022). Open Access Series in Informatics (OASIcs), Volume 104, pp. 4:1-4:6, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2022)

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@InProceedings{leal_et_al:OASIcs.SLATE.2022.4,
  author =	{Leal, Jos\'{e} Paulo and Queir\'{o}s, Ricardo and Primo, Marco},
  title =	{{Generation of Document Type Exercises for Automated Assessment}},
  booktitle =	{11th Symposium on Languages, Applications and Technologies (SLATE 2022)},
  pages =	{4:1--4:6},
  series =	{Open Access Series in Informatics (OASIcs)},
  ISBN =	{978-3-95977-245-7},
  ISSN =	{2190-6807},
  year =	{2022},
  volume =	{104},
  editor =	{Cordeiro, Jo\~{a}o and Pereira, Maria Jo\~{a}o and Rodrigues, Nuno F. and Pais, Sebasti\~{a}o},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/OASIcs.SLATE.2022.4},
  URN =		{urn:nbn:de:0030-drops-167506},
  doi =		{10.4230/OASIcs.SLATE.2022.4},
  annote =	{Keywords: exercise generation, automated assessment, document type assessment}
}
Document
DOI: 10.4230/OASIcs.SLATE.2022.18
ScraPE - An Automated Tool for Programming Exercises Scraping

Authors: Ricardo Queirós

Published in: OASIcs, Volume 104, 11th Symposium on Languages, Applications and Technologies (SLATE 2022)

Abstract
Learning programming boils down to the practice of solving exercises. However, although there are good and diversified exercises, these are held in proprietary systems hindering their interoperability. This article presents a simple scraping tool, called ScraPE, which through a navigation, interaction and data extraction script, materialized in a domain-specific language, allows extracting the data necessary from Web pages - typically online judges - to compose programming exercises in a standard language. The tool is validated by extracting exercises from a specific online judge. This tool is part of a larger project where the main objective is to provide programming exercises through a simple GraphQL API.
Cite as

Ricardo Queirós. ScraPE - An Automated Tool for Programming Exercises Scraping. In 11th Symposium on Languages, Applications and Technologies (SLATE 2022). Open Access Series in Informatics (OASIcs), Volume 104, pp. 18:1-18:7, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2022)

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@InProceedings{queiros:OASIcs.SLATE.2022.18,
  author =	{Queir\'{o}s, Ricardo},
  title =	{{ScraPE - An Automated Tool for Programming Exercises Scraping}},
  booktitle =	{11th Symposium on Languages, Applications and Technologies (SLATE 2022)},
  pages =	{18:1--18:7},
  series =	{Open Access Series in Informatics (OASIcs)},
  ISBN =	{978-3-95977-245-7},
  ISSN =	{2190-6807},
  year =	{2022},
  volume =	{104},
  editor =	{Cordeiro, Jo\~{a}o and Pereira, Maria Jo\~{a}o and Rodrigues, Nuno F. and Pais, Sebasti\~{a}o},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/OASIcs.SLATE.2022.18},
  URN =		{urn:nbn:de:0030-drops-167646},
  doi =		{10.4230/OASIcs.SLATE.2022.18},
  annote =	{Keywords: Web scrapping, crawling, programming exercises, online judges, DOM}
}
Document
DOI: 10.4230/OASIcs.ICPEC.2022.9
Integration of Computer Science Assessment into Learning Management Systems with JuezLTI

Authors: Juan V. Carrillo, Alberto Sierra, José Paulo Leal, Ricardo Queirós, Salvador Pellicer, and Marco Primo

Published in: OASIcs, Volume 102, Third International Computer Programming Education Conference (ICPEC 2022)

Abstract
Computer science is a skill that will continue to be in high demand in the foreseeable future. Despite this trend, automated assessment in computer science is often hampered by the lack of systems supporting a wide range of topics. While there is a number of open software systems and programming exercise collections supporting automated assessment, up to this date, there are few systems that offer a diversity of exercises ranging from computer programming exercises to markup and databases languages. At the same time, most of the best-of-breed solutions force teachers and students to alternate between the Learning Management System - a pivotal piece of the e-learning ecosystem - and the tool providing the exercises. This issue is addressed by JuezLTI, an international project whose goal is to create an innovative tool to allow the automatic assessment of exercises in a wide range of computer science topics. These topics include different languages used in computer science for programming, markup, and database management. JuezLTI borrows part of its name from the IMS Learning Tools Interoperability (IMS LTI) standard. With this standard, the tool will interoperate with reference systems such as Moodle, Sakai, Canvas, or Blackboard, among many others. Another contribution of JuezLTI will be a pool of exercises. Interoperability and content are expected to foster the adoption of JuezLTI by many institutions. This paper presents the JuezLTI project, its architecture, and its main components.
Cite as

Juan V. Carrillo, Alberto Sierra, José Paulo Leal, Ricardo Queirós, Salvador Pellicer, and Marco Primo. Integration of Computer Science Assessment into Learning Management Systems with JuezLTI. In Third International Computer Programming Education Conference (ICPEC 2022). Open Access Series in Informatics (OASIcs), Volume 102, pp. 9:1-9:8, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2022)

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@InProceedings{carrillo_et_al:OASIcs.ICPEC.2022.9,
  author =	{Carrillo, Juan V. and Sierra, Alberto and Leal, Jos\'{e} Paulo and Queir\'{o}s, Ricardo and Pellicer, Salvador and Primo, Marco},
  title =	{{Integration of Computer Science Assessment into Learning Management Systems with JuezLTI}},
  booktitle =	{Third International Computer Programming Education Conference (ICPEC 2022)},
  pages =	{9:1--9:8},
  series =	{Open Access Series in Informatics (OASIcs)},
  ISBN =	{978-3-95977-229-7},
  ISSN =	{2190-6807},
  year =	{2022},
  volume =	{102},
  editor =	{Sim\~{o}es, Alberto and Silva, Jo\~{a}o Carlos},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/OASIcs.ICPEC.2022.9},
  URN =		{urn:nbn:de:0030-drops-166130},
  doi =		{10.4230/OASIcs.ICPEC.2022.9},
  annote =	{Keywords: programming, interoperability, automatic assessment, programming exercises}
}
Document
DOI: 10.4230/OASIcs.ICPEC.2022.10
WebPuppet - A Tiny Automated Web UI Testing Tool

Authors: Ricardo Queirós

Published in: OASIcs, Volume 102, Third International Computer Programming Education Conference (ICPEC 2022)

Abstract
One of the most important phases in the Web development cycle is testing. There are several types of tests, different approaches to their use and a wide range of tools. However, most of them are not open source, require coding and do not have a pedagogical nature. This article introduces WebPuppet as an automated Web UI testing tool. The tool is distributed as a small Node package and can be easily integrated into any learning environment in the web development domain. In addition, it does not require coding in any language, just use a very simple domain-specific language that will generate a test script to run in client applications. In order to exemplify its use, a simple test scenario based on a login page is presented.
Cite as

Ricardo Queirós. WebPuppet - A Tiny Automated Web UI Testing Tool. In Third International Computer Programming Education Conference (ICPEC 2022). Open Access Series in Informatics (OASIcs), Volume 102, pp. 10:1-10:8, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2022)

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@InProceedings{queiros:OASIcs.ICPEC.2022.10,
  author =	{Queir\'{o}s, Ricardo},
  title =	{{WebPuppet - A Tiny Automated Web UI Testing Tool}},
  booktitle =	{Third International Computer Programming Education Conference (ICPEC 2022)},
  pages =	{10:1--10:8},
  series =	{Open Access Series in Informatics (OASIcs)},
  ISBN =	{978-3-95977-229-7},
  ISSN =	{2190-6807},
  year =	{2022},
  volume =	{102},
  editor =	{Sim\~{o}es, Alberto and Silva, Jo\~{a}o Carlos},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/OASIcs.ICPEC.2022.10},
  URN =		{urn:nbn:de:0030-drops-166143},
  doi =		{10.4230/OASIcs.ICPEC.2022.10},
  annote =	{Keywords: User Interface Testing, Web development, DOM}
}
Document
DOI: 10.4230/OASIcs.ICPEC.2022.12
A Roadmap to Convert Educational Web Applications into LTI Tools

Authors: José Paulo Leal, Ricardo Queirós, Pedro Ferreirinha, and Jakub Swacha

Published in: OASIcs, Volume 102, Third International Computer Programming Education Conference (ICPEC 2022)

Abstract
This paper proposes a roadmap to integrate existing educational web applications into the ecosystem based on a learning management system. To achieve this integration, applications must support the Learning Tools Interoperability specification in the role of tool provider. The paper starts with an overview of the evolution of this specification, emphasizing the main features of the current stable version. Then, it proposes a set of design goals and milestones to guide the adaptation process. The proposed roadmap was validated with existing applications. This paper reports on the challenges faced to apply it in these concrete cases.
Cite as

José Paulo Leal, Ricardo Queirós, Pedro Ferreirinha, and Jakub Swacha. A Roadmap to Convert Educational Web Applications into LTI Tools. In Third International Computer Programming Education Conference (ICPEC 2022). Open Access Series in Informatics (OASIcs), Volume 102, pp. 12:1-12:12, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2022)

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@InProceedings{leal_et_al:OASIcs.ICPEC.2022.12,
  author =	{Leal, Jos\'{e} Paulo and Queir\'{o}s, Ricardo and Ferreirinha, Pedro and Swacha, Jakub},
  title =	{{A Roadmap to Convert Educational Web Applications into LTI Tools}},
  booktitle =	{Third International Computer Programming Education Conference (ICPEC 2022)},
  pages =	{12:1--12:12},
  series =	{Open Access Series in Informatics (OASIcs)},
  ISBN =	{978-3-95977-229-7},
  ISSN =	{2190-6807},
  year =	{2022},
  volume =	{102},
  editor =	{Sim\~{o}es, Alberto and Silva, Jo\~{a}o Carlos},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/OASIcs.ICPEC.2022.12},
  URN =		{urn:nbn:de:0030-drops-166169},
  doi =		{10.4230/OASIcs.ICPEC.2022.12},
  annote =	{Keywords: programming, interoperability, automatic assessment, programming exercises}
}
Document
Complete Volume
DOI: 10.4230/OASIcs.SLATE.2021
OASIcs, Volume 94, SLATE 2021, Complete Volume

Authors: Ricardo Queirós, Mário Pinto, Alberto Simões, Filipe Portela, and Maria João Pereira

Published in: OASIcs, Volume 94, 10th Symposium on Languages, Applications and Technologies (SLATE 2021)

Abstract
OASIcs, Volume 94, SLATE 2021, Complete Volume
Cite as

10th Symposium on Languages, Applications and Technologies (SLATE 2021). Open Access Series in Informatics (OASIcs), Volume 94, pp. 1-260, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2021)

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@Proceedings{queiros_et_al:OASIcs.SLATE.2021,
  title =	{{OASIcs, Volume 94, SLATE 2021, Complete Volume}},
  booktitle =	{10th Symposium on Languages, Applications and Technologies (SLATE 2021)},
  pages =	{1--260},
  series =	{Open Access Series in Informatics (OASIcs)},
  ISBN =	{978-3-95977-202-0},
  ISSN =	{2190-6807},
  year =	{2021},
  volume =	{94},
  editor =	{Queir\'{o}s, Ricardo and Pinto, M\'{a}rio and Sim\~{o}es, Alberto and Portela, Filipe and Pereira, Maria Jo\~{a}o},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/OASIcs.SLATE.2021},
  URN =		{urn:nbn:de:0030-drops-144165},
  doi =		{10.4230/OASIcs.SLATE.2021},
  annote =	{Keywords: OASIcs, Volume 94, SLATE 2021, Complete Volume}
}
Document
Front Matter
DOI: 10.4230/OASIcs.SLATE.2021.0
Front Matter, Table of Contents, Preface, Conference Organization

Authors: Ricardo Queirós, Mário Pinto, Alberto Simões, Filipe Portela, and Maria João Pereira

Published in: OASIcs, Volume 94, 10th Symposium on Languages, Applications and Technologies (SLATE 2021)

Abstract
Front Matter, Table of Contents, Preface, Conference Organization
Cite as

10th Symposium on Languages, Applications and Technologies (SLATE 2021). Open Access Series in Informatics (OASIcs), Volume 94, pp. 0:i-0:xvi, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2021)

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@InProceedings{queiros_et_al:OASIcs.SLATE.2021.0,
  author =	{Queir\'{o}s, Ricardo and Pinto, M\'{a}rio and Sim\~{o}es, Alberto and Portela, Filipe and Pereira, Maria Jo\~{a}o},
  title =	{{Front Matter, Table of Contents, Preface, Conference Organization}},
  booktitle =	{10th Symposium on Languages, Applications and Technologies (SLATE 2021)},
  pages =	{0:i--0:xvi},
  series =	{Open Access Series in Informatics (OASIcs)},
  ISBN =	{978-3-95977-202-0},
  ISSN =	{2190-6807},
  year =	{2021},
  volume =	{94},
  editor =	{Queir\'{o}s, Ricardo and Pinto, M\'{a}rio and Sim\~{o}es, Alberto and Portela, Filipe and Pereira, Maria Jo\~{a}o},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/OASIcs.SLATE.2021.0},
  URN =		{urn:nbn:de:0030-drops-144171},
  doi =		{10.4230/OASIcs.SLATE.2021.0},
  annote =	{Keywords: Front Matter, Table of Contents, Preface, Conference Organization}
}
Document
DOI: 10.4230/OASIcs.SLATE.2021.5
Programming Exercises Interoperability: The Case of a Non-Picky Consumer

Authors: Ricardo Queirós, José Carlos Paiva, and José Paulo Leal

Published in: OASIcs, Volume 94, 10th Symposium on Languages, Applications and Technologies (SLATE 2021)

Abstract
Problem-solving is considered one of the most important skills to retain in the coming decades for building a modern and proactive society. In this realm, computer programming learning is vital to enrich those skills. Practicing in this area boils down to solve programming exercises. In order to foster this practice, it is necessary to provide students with the best of the breed automated tools and a good set of exercises in a fair quantity covering the curricula of a typical programming course. Despite the increasing appearance of automated tools such as program evaluators, gamification engines and sophisticated web environments, access to exercises remains problematic. In fact, although the existence of several code repositories (most for feed computer programming contests), the majority of them store the exercises in proprietary formats and without any access facilities hindering their use. This leaves no other option to teachers but to manually create programming exercises which is time-consuming and error prone, or simply, reuse the same exercises, from previous years, which is considered as a detrimental and limiting approach to enhance multi-faceted and creative programmers. The article surveys the current interoperability efforts on programming exercises, more precisely, in terms of serialization formats and communication protocols. This study will sustain the selection of an API to feed a code playground called LearnJS with random programming exercises.
Cite as

Ricardo Queirós, José Carlos Paiva, and José Paulo Leal. Programming Exercises Interoperability: The Case of a Non-Picky Consumer. In 10th Symposium on Languages, Applications and Technologies (SLATE 2021). Open Access Series in Informatics (OASIcs), Volume 94, pp. 5:1-5:9, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2021)

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@InProceedings{queiros_et_al:OASIcs.SLATE.2021.5,
  author =	{Queir\'{o}s, Ricardo and Paiva, Jos\'{e} Carlos and Leal, Jos\'{e} Paulo},
  title =	{{Programming Exercises Interoperability: The Case of a Non-Picky Consumer}},
  booktitle =	{10th Symposium on Languages, Applications and Technologies (SLATE 2021)},
  pages =	{5:1--5:9},
  series =	{Open Access Series in Informatics (OASIcs)},
  ISBN =	{978-3-95977-202-0},
  ISSN =	{2190-6807},
  year =	{2021},
  volume =	{94},
  editor =	{Queir\'{o}s, Ricardo and Pinto, M\'{a}rio and Sim\~{o}es, Alberto and Portela, Filipe and Pereira, Maria Jo\~{a}o},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/OASIcs.SLATE.2021.5},
  URN =		{urn:nbn:de:0030-drops-144220},
  doi =		{10.4230/OASIcs.SLATE.2021.5},
  annote =	{Keywords: programming exercises format, interoperability, automated assessment, learning programming}
}
Document
Short Paper
DOI: 10.4230/OASIcs.SLATE.2021.9
Mooshak’s Diet Update: Introducing YAPExIL Format to Mooshak (Short Paper)

Authors: José Carlos Paiva, Ricardo Queirós, and José Paulo Leal

Published in: OASIcs, Volume 94, 10th Symposium on Languages, Applications and Technologies (SLATE 2021)

Abstract
Practice is pivotal in learning programming. As many other automated assessment tools for programming assignments, Mooshak has been adopted by numerous educational practitioners to support them in delivering timely and accurate feedback to students during exercise solving. These tools specialize in the delivery and assessment of blank-sheet coding questions. However, the different phases of a student’s learning path may demand distinct types of exercises (e.g., bug fix and block sorting) to foster new competencies such as debugging programs and understanding unknown source code or, otherwise, to break the routine and keep engagement. Recently, a format for describing programming exercises - YAPExIL -, supporting different types of activities, has been introduced. Unfortunately, no automated assessment tool yet supports this novel format. This paper describes a JavaScript library to transform YAPExIL packages into Mooshak problem packages (i.e., MEF format), keeping support for all exercise types. Moreover, its integration in an exercise authoring tool is described.
Cite as

José Carlos Paiva, Ricardo Queirós, and José Paulo Leal. Mooshak’s Diet Update: Introducing YAPExIL Format to Mooshak (Short Paper). In 10th Symposium on Languages, Applications and Technologies (SLATE 2021). Open Access Series in Informatics (OASIcs), Volume 94, pp. 9:1-9:7, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2021)

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@InProceedings{paiva_et_al:OASIcs.SLATE.2021.9,
  author =	{Paiva, Jos\'{e} Carlos and Queir\'{o}s, Ricardo and Leal, Jos\'{e} Paulo},
  title =	{{Mooshak’s Diet Update: Introducing YAPExIL Format to Mooshak}},
  booktitle =	{10th Symposium on Languages, Applications and Technologies (SLATE 2021)},
  pages =	{9:1--9:7},
  series =	{Open Access Series in Informatics (OASIcs)},
  ISBN =	{978-3-95977-202-0},
  ISSN =	{2190-6807},
  year =	{2021},
  volume =	{94},
  editor =	{Queir\'{o}s, Ricardo and Pinto, M\'{a}rio and Sim\~{o}es, Alberto and Portela, Filipe and Pereira, Maria Jo\~{a}o},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/OASIcs.SLATE.2021.9},
  URN =		{urn:nbn:de:0030-drops-144261},
  doi =		{10.4230/OASIcs.SLATE.2021.9},
  annote =	{Keywords: programming exercises format, interoperability, automated assessment, learning programming}
}
Document
Complete Volume
DOI: 10.4230/OASIcs.ICPEC.2021
OASIcs, Volume 91, ICPEC 2021, Complete Volume

Authors: Pedro Rangel Henriques, Filipe Portela, Ricardo Queirós, and Alberto Simões

Published in: OASIcs, Volume 91, Second International Computer Programming Education Conference (ICPEC 2021)

Abstract
OASIcs, Volume 91, ICPEC 2021, Complete Volume
Cite as

Second International Computer Programming Education Conference (ICPEC 2021). Open Access Series in Informatics (OASIcs), Volume 91, pp. 1-202, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2021)

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@Proceedings{henriques_et_al:OASIcs.ICPEC.2021,
  title =	{{OASIcs, Volume 91, ICPEC 2021, Complete Volume}},
  booktitle =	{Second International Computer Programming Education Conference (ICPEC 2021)},
  pages =	{1--202},
  series =	{Open Access Series in Informatics (OASIcs)},
  ISBN =	{978-3-95977-194-8},
  ISSN =	{2190-6807},
  year =	{2021},
  volume =	{91},
  editor =	{Henriques, Pedro Rangel and Portela, Filipe and Queir\'{o}s, Ricardo and Sim\~{o}es, Alberto},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/OASIcs.ICPEC.2021},
  URN =		{urn:nbn:de:0030-drops-142156},
  doi =		{10.4230/OASIcs.ICPEC.2021},
  annote =	{Keywords: OASIcs, Volume 91, ICPEC 2021, Complete Volume}
}
Document
Front Matter
DOI: 10.4230/OASIcs.ICPEC.2021.0
Front Matter, Table of Contents, Preface, Conference Organization

Authors: Pedro Rangel Henriques, Filipe Portela, Ricardo Queirós, and Alberto Simões

Published in: OASIcs, Volume 91, Second International Computer Programming Education Conference (ICPEC 2021)

Abstract
Front Matter, Table of Contents, Preface, Conference Organization
Cite as

Second International Computer Programming Education Conference (ICPEC 2021). Open Access Series in Informatics (OASIcs), Volume 91, pp. 0:i-0:xvi, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2021)

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@InProceedings{henriques_et_al:OASIcs.ICPEC.2021.0,
  author =	{Henriques, Pedro Rangel and Portela, Filipe and Queir\'{o}s, Ricardo and Sim\~{o}es, Alberto},
  title =	{{Front Matter, Table of Contents, Preface, Conference Organization}},
  booktitle =	{Second International Computer Programming Education Conference (ICPEC 2021)},
  pages =	{0:i--0:xvi},
  series =	{Open Access Series in Informatics (OASIcs)},
  ISBN =	{978-3-95977-194-8},
  ISSN =	{2190-6807},
  year =	{2021},
  volume =	{91},
  editor =	{Henriques, Pedro Rangel and Portela, Filipe and Queir\'{o}s, Ricardo and Sim\~{o}es, Alberto},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/OASIcs.ICPEC.2021.0},
  URN =		{urn:nbn:de:0030-drops-142163},
  doi =		{10.4230/OASIcs.ICPEC.2021.0},
  annote =	{Keywords: Front Matter, Table of Contents, Preface, Conference Organization}
}
Document
Short Paper
DOI: 10.4230/OASIcs.ICPEC.2021.5
An Open-Source Gamified Programming Learning Environment (Short Paper)

Authors: José Carlos Paiva, Ricardo Queirós, José Paulo Leal, Jakub Swacha, and Filip Miernik

Published in: OASIcs, Volume 91, Second International Computer Programming Education Conference (ICPEC 2021)

Abstract
The importance of e-learning tools facilitating the process of learning to program is growing, especially as the pandemic-caused lockdown enforced distance learning in many countries. The key success factor in this process is the provision of an instant and relevant feedback to students. In this paper, we describe a novel open-source programming learning environment featuring automatic assessment of students' solutions and customized gamification. This environment has been developed as a part of the FGPE framework.
Cite as

José Carlos Paiva, Ricardo Queirós, José Paulo Leal, Jakub Swacha, and Filip Miernik. An Open-Source Gamified Programming Learning Environment (Short Paper). In Second International Computer Programming Education Conference (ICPEC 2021). Open Access Series in Informatics (OASIcs), Volume 91, pp. 5:1-5:8, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2021)

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@InProceedings{paiva_et_al:OASIcs.ICPEC.2021.5,
  author =	{Paiva, Jos\'{e} Carlos and Queir\'{o}s, Ricardo and Leal, Jos\'{e} Paulo and Swacha, Jakub and Miernik, Filip},
  title =	{{An Open-Source Gamified Programming Learning Environment}},
  booktitle =	{Second International Computer Programming Education Conference (ICPEC 2021)},
  pages =	{5:1--5:8},
  series =	{Open Access Series in Informatics (OASIcs)},
  ISBN =	{978-3-95977-194-8},
  ISSN =	{2190-6807},
  year =	{2021},
  volume =	{91},
  editor =	{Henriques, Pedro Rangel and Portela, Filipe and Queir\'{o}s, Ricardo and Sim\~{o}es, Alberto},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/OASIcs.ICPEC.2021.5},
  URN =		{urn:nbn:de:0030-drops-142210},
  doi =		{10.4230/OASIcs.ICPEC.2021.5},
  annote =	{Keywords: learning environment, programming exercises, gamification, programming learning, automatic assessment}
}
Document
Short Paper
DOI: 10.4230/OASIcs.ICPEC.2021.16
Experiments on PR-Based Gamification (Short Paper)

Authors: Alberto Simões and Ricardo Queirós

Published in: OASIcs, Volume 91, Second International Computer Programming Education Conference (ICPEC 2021)

Abstract
This article documents some experiments on teaching a class on a Master Degree Program using a different perspective on gamification. Instead of winning badges or getting achievements, students earn classification points. This allows them to work as hard as they are willing, having in mind their current classification and how far they can reach. In the specific experiment being reported, students can earn final grade points with pull requests to a shared class project. The article describes the details of the experiment, extrapolates on different ideas for implementing this in other classes, and concludes with the pros and cons of such approach for student evaluation.
Cite as

Alberto Simões and Ricardo Queirós. Experiments on PR-Based Gamification (Short Paper). In Second International Computer Programming Education Conference (ICPEC 2021). Open Access Series in Informatics (OASIcs), Volume 91, pp. 16:1-16:10, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2021)

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@InProceedings{simoes_et_al:OASIcs.ICPEC.2021.16,
  author =	{Sim\~{o}es, Alberto and Queir\'{o}s, Ricardo},
  title =	{{Experiments on PR-Based Gamification}},
  booktitle =	{Second International Computer Programming Education Conference (ICPEC 2021)},
  pages =	{16:1--16:10},
  series =	{Open Access Series in Informatics (OASIcs)},
  ISBN =	{978-3-95977-194-8},
  ISSN =	{2190-6807},
  year =	{2021},
  volume =	{91},
  editor =	{Henriques, Pedro Rangel and Portela, Filipe and Queir\'{o}s, Ricardo and Sim\~{o}es, Alberto},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/OASIcs.ICPEC.2021.16},
  URN =		{urn:nbn:de:0030-drops-142326},
  doi =		{10.4230/OASIcs.ICPEC.2021.16},
  annote =	{Keywords: computer education, gamification on class, GIT}
}
Document
Short Paper
DOI: 10.4230/OASIcs.ICPEC.2021.17
User Experience Evaluation in a Code Playground (Short Paper)

Authors: Ricardo Queirós, Mário Pinto, and Teresa Terroso

Published in: OASIcs, Volume 91, Second International Computer Programming Education Conference (ICPEC 2021)

Abstract
Learning computer programming is a complex activity and requires a lot of practice. The viral pandemic that we are facing has intensified these difficulties. In this context, programming learning platforms play a crucial role. Most of them are characterized by providing a wide range of exercises with progressive complexity, multi-language support, sophisticated interfaces and automatic evaluation and gamification services. Nevertheless, despite the various features provided, others features, which influence user experience, are not emphasized, such as performance and usability. This article presents an user experience evaluation of the LearnJS playground, a JavaScript learning platform which aims to foster the practice of coding. The evaluation highlights two facets of the code playground: performance and a usability. In the former, lab and field data were collected based on Google Lighthouse and PageSpeed Insights reports. In the later, an inquiry was distributed among students from a Web Technologies course with a set of questions based on flexibility, usability and consistency heuristics. Both evaluation studies have a twofold goal: to improve the learning environment in order to be officially used in the next school year and to foster the awareness of user experience in all phases of the software development life-cycle as a key facet in Web applications engagement and loyalty.
Cite as

Ricardo Queirós, Mário Pinto, and Teresa Terroso. User Experience Evaluation in a Code Playground (Short Paper). In Second International Computer Programming Education Conference (ICPEC 2021). Open Access Series in Informatics (OASIcs), Volume 91, pp. 17:1-17:9, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2021)

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@InProceedings{queiros_et_al:OASIcs.ICPEC.2021.17,
  author =	{Queir\'{o}s, Ricardo and Pinto, M\'{a}rio and Terroso, Teresa},
  title =	{{User Experience Evaluation in a Code Playground}},
  booktitle =	{Second International Computer Programming Education Conference (ICPEC 2021)},
  pages =	{17:1--17:9},
  series =	{Open Access Series in Informatics (OASIcs)},
  ISBN =	{978-3-95977-194-8},
  ISSN =	{2190-6807},
  year =	{2021},
  volume =	{91},
  editor =	{Henriques, Pedro Rangel and Portela, Filipe and Queir\'{o}s, Ricardo and Sim\~{o}es, Alberto},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/OASIcs.ICPEC.2021.17},
  URN =		{urn:nbn:de:0030-drops-142338},
  doi =		{10.4230/OASIcs.ICPEC.2021.17},
  annote =	{Keywords: programming learning, code playground, programming exercises, user experience}
}
Document
Complete Volume
DOI: 10.4230/OASIcs.SLATE.2020
OASIcs, Volume 83, SLATE 2020, Complete Volume

Authors: Alberto Simões, Pedro Rangel Henriques, and Ricardo Queirós

Published in: OASIcs, Volume 83, 9th Symposium on Languages, Applications and Technologies (SLATE 2020)

Abstract
OASIcs, Volume 83, SLATE 2020, Complete Volume
Cite as

9th Symposium on Languages, Applications and Technologies (SLATE 2020). Open Access Series in Informatics (OASIcs), Volume 83, pp. 1-218, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2020)

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@Proceedings{simoes_et_al:OASIcs.SLATE.2020,
  title =	{{OASIcs, Volume 83, SLATE 2020, Complete Volume}},
  booktitle =	{9th Symposium on Languages, Applications and Technologies (SLATE 2020)},
  pages =	{1--218},
  series =	{Open Access Series in Informatics (OASIcs)},
  ISBN =	{978-3-95977-165-8},
  ISSN =	{2190-6807},
  year =	{2020},
  volume =	{83},
  editor =	{Sim\~{o}es, Alberto and Henriques, Pedro Rangel and Queir\'{o}s, Ricardo},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/OASIcs.SLATE.2020},
  URN =		{urn:nbn:de:0030-drops-130124},
  doi =		{10.4230/OASIcs.SLATE.2020},
  annote =	{Keywords: OASIcs, Volume 83, SLATE 2020, Complete Volume}
}
Document
Front Matter
DOI: 10.4230/OASIcs.SLATE.2020.0
Front Matter, Table of Contents, Preface, Conference Organization

Authors: Alberto Simões, Pedro Rangel Henriques, and Ricardo Queirós

Published in: OASIcs, Volume 83, 9th Symposium on Languages, Applications and Technologies (SLATE 2020)

Abstract
Front Matter, Table of Contents, Preface, Conference Organization
Cite as

9th Symposium on Languages, Applications and Technologies (SLATE 2020). Open Access Series in Informatics (OASIcs), Volume 83, pp. 0:i-0:xii, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2020)

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@InProceedings{simoes_et_al:OASIcs.SLATE.2020.0,
  author =	{Sim\~{o}es, Alberto and Henriques, Pedro Rangel and Queir\'{o}s, Ricardo},
  title =	{{Front Matter, Table of Contents, Preface, Conference Organization}},
  booktitle =	{9th Symposium on Languages, Applications and Technologies (SLATE 2020)},
  pages =	{0:i--0:xii},
  series =	{Open Access Series in Informatics (OASIcs)},
  ISBN =	{978-3-95977-165-8},
  ISSN =	{2190-6807},
  year =	{2020},
  volume =	{83},
  editor =	{Sim\~{o}es, Alberto and Henriques, Pedro Rangel and Queir\'{o}s, Ricardo},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/OASIcs.SLATE.2020.0},
  URN =		{urn:nbn:de:0030-drops-130134},
  doi =		{10.4230/OASIcs.SLATE.2020.0},
  annote =	{Keywords: Front Matter, Table of Contents, Preface, Conference Organization}
}
Document
Short Paper
DOI: 10.4230/OASIcs.SLATE.2020.14
Yet Another Programming Exercises Interoperability Language (Short Paper)

Authors: José Carlos Paiva, Ricardo Queirós, José Paulo Leal, and Jakub Swacha

Published in: OASIcs, Volume 83, 9th Symposium on Languages, Applications and Technologies (SLATE 2020)

Abstract
This paper introduces Yet Another Programming Exercises Interoperability Language (YAPExIL), a JSON format that aims to: (1) support several kinds of programming exercises behind traditional blank sheet activities; (2) capitalize on expressiveness and interoperability to constitute a strong candidate to standard open programming exercises format. To this end, it builds upon an existing open format named PExIL, by mitigating its weaknesses and extending its support for a handful of exercise types. YAPExIL is published as an open format, independent from any commercial vendor, and supported with dedicated open-source software.
Cite as

José Carlos Paiva, Ricardo Queirós, José Paulo Leal, and Jakub Swacha. Yet Another Programming Exercises Interoperability Language (Short Paper). In 9th Symposium on Languages, Applications and Technologies (SLATE 2020). Open Access Series in Informatics (OASIcs), Volume 83, pp. 14:1-14:8, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2020)

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@InProceedings{paiva_et_al:OASIcs.SLATE.2020.14,
  author =	{Paiva, Jos\'{e} Carlos and Queir\'{o}s, Ricardo and Leal, Jos\'{e} Paulo and Swacha, Jakub},
  title =	{{Yet Another Programming Exercises Interoperability Language}},
  booktitle =	{9th Symposium on Languages, Applications and Technologies (SLATE 2020)},
  pages =	{14:1--14:8},
  series =	{Open Access Series in Informatics (OASIcs)},
  ISBN =	{978-3-95977-165-8},
  ISSN =	{2190-6807},
  year =	{2020},
  volume =	{83},
  editor =	{Sim\~{o}es, Alberto and Henriques, Pedro Rangel and Queir\'{o}s, Ricardo},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/OASIcs.SLATE.2020.14},
  URN =		{urn:nbn:de:0030-drops-130270},
  doi =		{10.4230/OASIcs.SLATE.2020.14},
  annote =	{Keywords: programming exercises format, interoperability, automated assessment, programming learning}
}
Document
Short Paper
DOI: 10.4230/OASIcs.SLATE.2020.18
bOWL: A Pluggable OWL Browser (Short Paper)

Authors: Alberto Simões and Ricardo Queirós

Published in: OASIcs, Volume 83, 9th Symposium on Languages, Applications and Technologies (SLATE 2020)

Abstract
The Web Ontology Language (OWL) is a World Wide Web Consortium standard, based on the Resource Description Format standard. It is used to define ontologies. While large ontologies are useful for different applications, some tools require partial ontologies, based mostly on a hierarchical relationship of classes. In this article we present bOWL, a basic OWL browser, with the main goal of being pluggable into others, more significant, web applications. The tool was tested through its integration on LeXmart, a dictionary editing tool.
Cite as

Alberto Simões and Ricardo Queirós. bOWL: A Pluggable OWL Browser (Short Paper). In 9th Symposium on Languages, Applications and Technologies (SLATE 2020). Open Access Series in Informatics (OASIcs), Volume 83, pp. 18:1-18:7, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2020)

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@InProceedings{simoes_et_al:OASIcs.SLATE.2020.18,
  author =	{Sim\~{o}es, Alberto and Queir\'{o}s, Ricardo},
  title =	{{bOWL: A Pluggable OWL Browser}},
  booktitle =	{9th Symposium on Languages, Applications and Technologies (SLATE 2020)},
  pages =	{18:1--18:7},
  series =	{Open Access Series in Informatics (OASIcs)},
  ISBN =	{978-3-95977-165-8},
  ISSN =	{2190-6807},
  year =	{2020},
  volume =	{83},
  editor =	{Sim\~{o}es, Alberto and Henriques, Pedro Rangel and Queir\'{o}s, Ricardo},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/OASIcs.SLATE.2020.18},
  URN =		{urn:nbn:de:0030-drops-130318},
  doi =		{10.4230/OASIcs.SLATE.2020.18},
  annote =	{Keywords: OWL, Web Plugin, OWL Browser, Ontology}
}
Document
Complete Volume
DOI: 10.4230/OASIcs.ICPEC.2020
OASIcs, Volume 81, ICPEC 2020, Complete Volume

Authors: Ricardo Queirós, Filipe Portela, Mário Pinto, and Alberto Simões

Published in: OASIcs, Volume 81, First International Computer Programming Education Conference (ICPEC 2020)

Abstract
OASIcs, Volume 81, ICPEC 2020, Complete Volume
Cite as

First International Computer Programming Education Conference (ICPEC 2020). Open Access Series in Informatics (OASIcs), Volume 81, pp. 1-294, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2020)

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@Proceedings{queiros_et_al:OASIcs.ICPEC.2020,
  title =	{{OASIcs, Volume 81, ICPEC 2020, Complete Volume}},
  booktitle =	{First International Computer Programming Education Conference (ICPEC 2020)},
  pages =	{1--294},
  series =	{Open Access Series in Informatics (OASIcs)},
  ISBN =	{978-3-95977-153-5},
  ISSN =	{2190-6807},
  year =	{2020},
  volume =	{81},
  editor =	{Queir\'{o}s, Ricardo and Portela, Filipe and Pinto, M\'{a}rio and Sim\~{o}es, Alberto},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/OASIcs.ICPEC.2020},
  URN =		{urn:nbn:de:0030-drops-122865},
  doi =		{10.4230/OASIcs.ICPEC.2020},
  annote =	{Keywords: OASIcs, Volume 81, ICPEC 2020, Complete Volume}
}
Document
Front Matter
DOI: 10.4230/OASIcs.ICPEC.2020.0
Front Matter, Table of Contents, Preface, Conference Organization

Authors: Ricardo Queirós, Filipe Portela, Mário Pinto, and Alberto Simões

Published in: OASIcs, Volume 81, First International Computer Programming Education Conference (ICPEC 2020)

Abstract
Front Matter, Table of Contents, Preface, Conference Organization
Cite as

First International Computer Programming Education Conference (ICPEC 2020). Open Access Series in Informatics (OASIcs), Volume 81, pp. 0:i-0:xviii, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2020)

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@InProceedings{queiros_et_al:OASIcs.ICPEC.2020.0,
  author =	{Queir\'{o}s, Ricardo and Portela, Filipe and Pinto, M\'{a}rio and Sim\~{o}es, Alberto},
  title =	{{Front Matter, Table of Contents, Preface, Conference Organization}},
  booktitle =	{First International Computer Programming Education Conference (ICPEC 2020)},
  pages =	{0:i--0:xviii},
  series =	{Open Access Series in Informatics (OASIcs)},
  ISBN =	{978-3-95977-153-5},
  ISSN =	{2190-6807},
  year =	{2020},
  volume =	{81},
  editor =	{Queir\'{o}s, Ricardo and Portela, Filipe and Pinto, M\'{a}rio and Sim\~{o}es, Alberto},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/OASIcs.ICPEC.2020.0},
  URN =		{urn:nbn:de:0030-drops-122878},
  doi =		{10.4230/OASIcs.ICPEC.2020.0},
  annote =	{Keywords: Front Matter, Table of Contents, Preface, Conference Organization}
}
Document
DOI: 10.4230/OASIcs.ICPEC.2020.18
Game-Based Coding Challenges to Foster Programming Practice

Authors: José Carlos Paiva, José Paulo Leal, and Ricardo Queirós

Published in: OASIcs, Volume 81, First International Computer Programming Education Conference (ICPEC 2020)

Abstract
The practice is the crux of learning to program. Automated assessment plays a key role in enabling timely feedback without access to teachers but alone is insufficient to engage students and maximize the outcome of their practice. Graphical feedback and game-thinking promote positive effects on students' motivation as shown by some serious programming games, but those games are complex to create and adapt. This paper presents Asura, an environment for assessment of game-based coding challenges, built on a specialized framework, in which students are invited to develop a software agent (SA) to play it. During the coding phase, students can take advantage of the graphical feedback to complete the proposed task. Some challenges also encourage students to think of a SA that plays in a setting with interaction among SAs. In such a case, the environment supports the creation and visualization of tournaments among submitted agents. Furthermore, the validation of this environment from the learners' perspective is also described.
Cite as

José Carlos Paiva, José Paulo Leal, and Ricardo Queirós. Game-Based Coding Challenges to Foster Programming Practice. In First International Computer Programming Education Conference (ICPEC 2020). Open Access Series in Informatics (OASIcs), Volume 81, pp. 18:1-18:11, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2020)

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@InProceedings{paiva_et_al:OASIcs.ICPEC.2020.18,
  author =	{Paiva, Jos\'{e} Carlos and Leal, Jos\'{e} Paulo and Queir\'{o}s, Ricardo},
  title =	{{Game-Based Coding Challenges to Foster Programming Practice}},
  booktitle =	{First International Computer Programming Education Conference (ICPEC 2020)},
  pages =	{18:1--18:11},
  series =	{Open Access Series in Informatics (OASIcs)},
  ISBN =	{978-3-95977-153-5},
  ISSN =	{2190-6807},
  year =	{2020},
  volume =	{81},
  editor =	{Queir\'{o}s, Ricardo and Portela, Filipe and Pinto, M\'{a}rio and Sim\~{o}es, Alberto},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/OASIcs.ICPEC.2020.18},
  URN =		{urn:nbn:de:0030-drops-123051},
  doi =		{10.4230/OASIcs.ICPEC.2020.18},
  annote =	{Keywords: games, automatic assessment, graphical feedback, programming, learning, challenges}
}
Document
DOI: 10.4230/OASIcs.ICPEC.2020.21
Computer Programming Education in Portuguese Universities

Authors: Ricardo Queirós, Mário Pinto, and Teresa Terroso

Published in: OASIcs, Volume 81, First International Computer Programming Education Conference (ICPEC 2020)

Abstract
Computer programming plays a relevant role in the digital age as a key competency for project leverage and a driver of innovation for today’s modern societies. Despite its importance, this domain is also well known for their higher learning failure rates. In this context, the study of how computer programming is taught is fundamental to clarify the teaching-learning process and to ensure the sharing of the best practices. This paper presents a survey on computer programming teaching in the first-year courses of Portuguese Universities, more precisely, what is taught and how it is taught. The study focuses essentially on the following facets: the class characterization, the methodologies used and the languages/technologies taught. Based on these criteria, a survey was done which gathers information of 59 courses included in a wide range of Universities spread across Portugal. The results were collected and analyzed. Based on this analysis a set of conclusions were taken revealing some interesting results on the teaching methods and languages used which can be useful to support a discussion on this subject and, consequently, to find new paths to shape the future of programming teaching.
Cite as

Ricardo Queirós, Mário Pinto, and Teresa Terroso. Computer Programming Education in Portuguese Universities. In First International Computer Programming Education Conference (ICPEC 2020). Open Access Series in Informatics (OASIcs), Volume 81, pp. 21:1-21:11, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2020)

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@InProceedings{queiros_et_al:OASIcs.ICPEC.2020.21,
  author =	{Queir\'{o}s, Ricardo and Pinto, M\'{a}rio and Terroso, Teresa},
  title =	{{Computer Programming Education in Portuguese Universities}},
  booktitle =	{First International Computer Programming Education Conference (ICPEC 2020)},
  pages =	{21:1--21:11},
  series =	{Open Access Series in Informatics (OASIcs)},
  ISBN =	{978-3-95977-153-5},
  ISSN =	{2190-6807},
  year =	{2020},
  volume =	{81},
  editor =	{Queir\'{o}s, Ricardo and Portela, Filipe and Pinto, M\'{a}rio and Sim\~{o}es, Alberto},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/OASIcs.ICPEC.2020.21},
  URN =		{urn:nbn:de:0030-drops-123082},
  doi =		{10.4230/OASIcs.ICPEC.2020.21},
  annote =	{Keywords: computer programming, teaching-learning, universities}
}
Document
DOI: 10.4230/OASIcs.ICPEC.2020.24
On the Nature of Programming Exercises

Authors: Alberto Simões and Ricardo Queirós

Published in: OASIcs, Volume 81, First International Computer Programming Education Conference (ICPEC 2020)

Abstract
There are countless reasons cited in scientific studies to explain the difficulties in programming learning. The reasons range from the subject’s complexity, the ineffective teaching and study methods, to psychological aspects such as demotivation. Still, learning programming often boils down to practice on exercise solving. Hence, it is essential to understand that the nature of a programming exercise is an important factor for the success and consistent learning. This paper explores different approaches on the creation of a programming exercise, starting with realizing how it is currently formalized, presented and evaluated. From there, authors suggest variations that seek to broaden the way an exercise is solved and, with this diversity, increase student engagement and learning outcome. The several types of exercises presented can use gamification techniques fostering student motivation. To contextualize the student with his peers, we finish presenting metrics that can be obtained by existing automatic assessment tools.
Cite as

Alberto Simões and Ricardo Queirós. On the Nature of Programming Exercises. In First International Computer Programming Education Conference (ICPEC 2020). Open Access Series in Informatics (OASIcs), Volume 81, pp. 24:1-24:9, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2020)

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@InProceedings{simoes_et_al:OASIcs.ICPEC.2020.24,
  author =	{Sim\~{o}es, Alberto and Queir\'{o}s, Ricardo},
  title =	{{On the Nature of Programming Exercises}},
  booktitle =	{First International Computer Programming Education Conference (ICPEC 2020)},
  pages =	{24:1--24:9},
  series =	{Open Access Series in Informatics (OASIcs)},
  ISBN =	{978-3-95977-153-5},
  ISSN =	{2190-6807},
  year =	{2020},
  volume =	{81},
  editor =	{Queir\'{o}s, Ricardo and Portela, Filipe and Pinto, M\'{a}rio and Sim\~{o}es, Alberto},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/OASIcs.ICPEC.2020.24},
  URN =		{urn:nbn:de:0030-drops-123117},
  doi =		{10.4230/OASIcs.ICPEC.2020.24},
  annote =	{Keywords: Programming Exercises, Computer Science, Automatic Evaluation, Programming Challenges}
}
Document
DOI: 10.4230/OASIcs.ICPEC.2020.26
A Roadmap to Gamify Programming Education

Authors: Jakub Swacha, Ricardo Queirós, José Carlos Paiva, José Paulo Leal, Sokol Kosta, and Raffaele Montella

Published in: OASIcs, Volume 81, First International Computer Programming Education Conference (ICPEC 2020)

Abstract
Learning programming relies on practicing it which is often hampered by the barrier of difficulty. The combined use of automated assessment, which provides fast feedback to the students experimenting with their code, and gamification, which provides additional motivation for the students to intensify their learning effort, can help pass the barrier of difficulty in learning programming. In such environment, students keep receiving the relevant feedback no matter how many times they try (thanks to automated assessment), and their engagement is retained (thanks to gamification). While there is a number of open software and programming exercise collections supporting automated assessment, up to this date, there are no available open collections of gamified programming exercises, no open interactive programming learning environment that would support such exercises, and even no open standard for the representation of such exercises so that they could be developed in different educational institutions and shared among them. This gap is addressed by Framework for Gamified Programming Education (FGPE), an international project whose primary objective is to provide necessary prerequisites for the application of gamification to programming education, including a dedicated gamification scheme, a gamified exercise format and exercises conforming to it, software for editing the exercises and an interactive learning environment capable of presenting them to students. This paper presents the FGPE project, its architecture and main components, as well as the results achieved so far.
Cite as

Jakub Swacha, Ricardo Queirós, José Carlos Paiva, José Paulo Leal, Sokol Kosta, and Raffaele Montella. A Roadmap to Gamify Programming Education. In First International Computer Programming Education Conference (ICPEC 2020). Open Access Series in Informatics (OASIcs), Volume 81, pp. 26:1-26:7, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2020)

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@InProceedings{swacha_et_al:OASIcs.ICPEC.2020.26,
  author =	{Swacha, Jakub and Queir\'{o}s, Ricardo and Paiva, Jos\'{e} Carlos and Leal, Jos\'{e} Paulo and Kosta, Sokol and Montella, Raffaele},
  title =	{{A Roadmap to Gamify Programming Education}},
  booktitle =	{First International Computer Programming Education Conference (ICPEC 2020)},
  pages =	{26:1--26:7},
  series =	{Open Access Series in Informatics (OASIcs)},
  ISBN =	{978-3-95977-153-5},
  ISSN =	{2190-6807},
  year =	{2020},
  volume =	{81},
  editor =	{Queir\'{o}s, Ricardo and Portela, Filipe and Pinto, M\'{a}rio and Sim\~{o}es, Alberto},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/OASIcs.ICPEC.2020.26},
  URN =		{urn:nbn:de:0030-drops-123136},
  doi =		{10.4230/OASIcs.ICPEC.2020.26},
  annote =	{Keywords: gamification, programming, learning, automatic assessment, programming exercises}
}
Document
DOI: 10.4230/OASIcs.SLATE.2019.10
Learning JavaScript in a Local Playground

Authors: Ricardo Queirós

Published in: OASIcs, Volume 74, 8th Symposium on Languages, Applications and Technologies (SLATE 2019)

Abstract
JavaScript is currently one of the most popular languages worldwide. Its meteoric rise is mainly due to the fact that the language is no longer bound to the limits of the browser and can now be used on several platforms. This growth has led to its increasing use by companies and, consequently, to become part of the curriculum in schools. Meanwhile, in the teaching-learning process of computer programming, teachers continue to use automatic code evaluation systems to relieve their time-consuming and error prone evaluation work. However, these systems reveal a number of issues: they are very generic (one size fits all), they have scarce features to foster exercises authoring, they do not adhere to interoperability standards (e.g. LMS communication), they rely solely on remote evaluators being exposed to single point of failure problems and reducing application performance and user experience, which is a feature well appreciated by the mobile users. In this context, LearnJS is presented as a Web playground for practicing the JavaScript language. The system uses a local evaluator (the user’s own browser) making response times small and thus benefiting the user experience. LearnJS also uses a sophisticated authoring system that allows the teacher to quickly create new exercises and aggregate them into gamified activities. Finally, LearnJS includes universal LMS connectors based on international specifications. In order to validate its use, an evaluation was made by a group of students of Porto Polytechnic aiming to validate the usability of its graphical user interface.
Cite as

Ricardo Queirós. Learning JavaScript in a Local Playground. In 8th Symposium on Languages, Applications and Technologies (SLATE 2019). Open Access Series in Informatics (OASIcs), Volume 74, pp. 10:1-10:11, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2019)

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@InProceedings{queiros:OASIcs.SLATE.2019.10,
  author =	{Queir\'{o}s, Ricardo},
  title =	{{Learning JavaScript in a Local Playground}},
  booktitle =	{8th Symposium on Languages, Applications and Technologies (SLATE 2019)},
  pages =	{10:1--10:11},
  series =	{Open Access Series in Informatics (OASIcs)},
  ISBN =	{978-3-95977-114-6},
  ISSN =	{2190-6807},
  year =	{2019},
  volume =	{74},
  editor =	{Rodrigues, Ricardo and Janou\v{s}ek, Jan and Ferreira, Lu{\'\i}s and Coheur, Lu{\'\i}sa and Batista, Fernando and Gon\c{c}alo Oliveira, Hugo},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/OASIcs.SLATE.2019.10},
  URN =		{urn:nbn:de:0030-drops-108775},
  doi =		{10.4230/OASIcs.SLATE.2019.10},
  annote =	{Keywords: programming languages, gamification, e-learning, automatic evaluation, web development}
}
Document
DOI: 10.4230/OASIcs.SLATE.2019.23
SeCoGen - A Service Code Generator

Authors: Ricardo Queirós

Published in: OASIcs, Volume 74, 8th Symposium on Languages, Applications and Technologies (SLATE 2019)

Abstract
The architectural pattern of micro-services is being increasingly adopted by developers, facilitating the maintenance and scalability of the systems' code. The adoption and consumption of these micro-services are often seen on the front-end code of the Web applications. Nevertheless, this adoption obliges web designers/developers to know where to look for those web services, to read their documentation and to write the request/response code as well to control the corresponding UI rendering. This whole process is time-consuming and error-prone. This article introduces SeCoGen as an interactive code generator for Web service parsing and consumption. The generator benefits from an HTTP request template, a query normalizer and dynamic UI templates. In order, to validate the generator feasibility and usefulness, a REST API to search for countries is used.
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Ricardo Queirós. SeCoGen - A Service Code Generator. In 8th Symposium on Languages, Applications and Technologies (SLATE 2019). Open Access Series in Informatics (OASIcs), Volume 74, pp. 23:1-23:8, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2019)

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@InProceedings{queiros:OASIcs.SLATE.2019.23,
  author =	{Queir\'{o}s, Ricardo},
  title =	{{SeCoGen - A Service Code Generator}},
  booktitle =	{8th Symposium on Languages, Applications and Technologies (SLATE 2019)},
  pages =	{23:1--23:8},
  series =	{Open Access Series in Informatics (OASIcs)},
  ISBN =	{978-3-95977-114-6},
  ISSN =	{2190-6807},
  year =	{2019},
  volume =	{74},
  editor =	{Rodrigues, Ricardo and Janou\v{s}ek, Jan and Ferreira, Lu{\'\i}s and Coheur, Lu{\'\i}sa and Batista, Fernando and Gon\c{c}alo Oliveira, Hugo},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/OASIcs.SLATE.2019.23},
  URN =		{urn:nbn:de:0030-drops-108905},
  doi =		{10.4230/OASIcs.SLATE.2019.23},
  annote =	{Keywords: Code Generation, Web services, micro-services}
}
Document
DOI: 10.4230/OASIcs.SLATE.2018.1
Kaang: A RESTful API Generator for the Modern Web

Authors: Ricardo Queirós

Published in: OASIcs, Volume 62, 7th Symposium on Languages, Applications and Technologies (SLATE 2018)

Abstract
Technology is constantly evolving, as a result, users have become more demanding and the applications more complex. In the realm of Web development, JavaScript is growing in a surprising way, already leaving the boundaries of the browser, mainly due to the advent of Node.js. In fact, JavaScript is constantly being reinvented and, from the ES2015 version, began to include the OO concepts typically found in other programming languages. With Web access being mostly made by mobile devices, developers face now performance challenges and need to perform a plethora of tasks that weren't necessary a decade ago, such as managing dependencies, bundling files, minifying code, optimizing images and others. Many of these tasks can be achieved by using the right tools for the job. However, developers not only have to know those tools, but they also must know how to access and operate them. This process can be tedious, confusing, time-consuming and error-prone. In this paper, we present Kaang, an automatic generator of RESTFul Web applications. The ultimate goal of Kaang is to minimize the impact of creating a RESTFul service by automating all its workflow (e.g., files structuring, boilerplate code generation, dependencies management, and task building). This kind of generators will benefit two types of users: will help novice developers to decrease their learning curve while facing the new frameworks and libraries commonly found in the modern Web and speed up the work of expert developers avoiding all the repetitive and bureaucratic work. At the same time, Kaang promotes the good development principles by adding automatic testing and documentation generation. For this accomplishment, Kaang generates the main API content based on the user's input and a set of templates which will help developers to manage and test routes, define resources, store data models and others. In order to provide an addition level of confidence to the generator's end-users, the generator will be integrated on Travis CI and published on both the npmjs and Yeoman registries.
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Ricardo Queirós. Kaang: A RESTful API Generator for the Modern Web. In 7th Symposium on Languages, Applications and Technologies (SLATE 2018). Open Access Series in Informatics (OASIcs), Volume 62, pp. 1:1-1:15, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2018)

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@InProceedings{queiros:OASIcs.SLATE.2018.1,
  author =	{Queir\'{o}s, Ricardo},
  title =	{{Kaang: A RESTful API Generator for the Modern Web}},
  booktitle =	{7th Symposium on Languages, Applications and Technologies (SLATE 2018)},
  pages =	{1:1--1:15},
  series =	{Open Access Series in Informatics (OASIcs)},
  ISBN =	{978-3-95977-072-9},
  ISSN =	{2190-6807},
  year =	{2018},
  volume =	{62},
  editor =	{Henriques, Pedro Rangel and Leal, Jos\'{e} Paulo and Leit\~{a}o, Ant\'{o}nio Menezes and Guinovart, Xavier G\'{o}mez},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/OASIcs.SLATE.2018.1},
  URN =		{urn:nbn:de:0030-drops-92592},
  doi =		{10.4230/OASIcs.SLATE.2018.1},
  annote =	{Keywords: web development, generators, web tooling, javascript}
}
Document
Short Paper
DOI: 10.4230/OASIcs.SLATE.2018.2
LearnJS - A JavaScript Learning Playground (Short Paper)

Authors: Ricardo Queirós

Published in: OASIcs, Volume 62, 7th Symposium on Languages, Applications and Technologies (SLATE 2018)

Abstract
The JavaScript ecosystem is evolving dramatically. Nowadays, the language is no longer confined to the boundaries of the browser and is now running in both sides of the Web stack. At the same time, JavaScript it's starting to play also an important role in desktop and mobile applications development. These facts are leading companies to massively adopt JavaScript in their Web/mobile projects and schools to augment the language spectrum among their courses curricula. Several platforms appeared in recent years aiming to foster the learning of the JavaScript language. Those platforms are mainly characterized with sophisticated UI which allow users to learn JavaScript in a playful and interactive way. Despite its apparent success, these environments are not suitable to be integrated in existent educational platforms. Beyond these interoperability issues, most of these platforms are rigid not allowing teachers to contribute with new exercises, organize the existent exercises in more suitable and modular activities to be deployed in their courses, neither keep track of student's progress. This paper presents LearnJS as a simple and flexible platform to teach and learn JavaScript. In this platform, instructors can contribute with new exercises and combine them with expositive resources (e.g videos) to define specific course activities. These activities can be gamified with the injection of dynamic attributes to reward the most successful attempts. Finally, instructors can deploy activities in their educational platforms. On the other hand, learners can solve exercises and receive immediate feedback on their solutions through static and dynamic analyzers. Since we are in the early stages of implementation, the paper focus on the presentation of the LearnJS architecture, their main components and their data and integration models. Nevertheless, a prototype of the platform is available in a GitHub repository.
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Ricardo Queirós. LearnJS - A JavaScript Learning Playground (Short Paper). In 7th Symposium on Languages, Applications and Technologies (SLATE 2018). Open Access Series in Informatics (OASIcs), Volume 62, pp. 2:1-2:9, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2018)

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@InProceedings{queiros:OASIcs.SLATE.2018.2,
  author =	{Queir\'{o}s, Ricardo},
  title =	{{LearnJS - A JavaScript Learning Playground}},
  booktitle =	{7th Symposium on Languages, Applications and Technologies (SLATE 2018)},
  pages =	{2:1--2:9},
  series =	{Open Access Series in Informatics (OASIcs)},
  ISBN =	{978-3-95977-072-9},
  ISSN =	{2190-6807},
  year =	{2018},
  volume =	{62},
  editor =	{Henriques, Pedro Rangel and Leal, Jos\'{e} Paulo and Leit\~{a}o, Ant\'{o}nio Menezes and Guinovart, Xavier G\'{o}mez},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/OASIcs.SLATE.2018.2},
  URN =		{urn:nbn:de:0030-drops-92605},
  doi =		{10.4230/OASIcs.SLATE.2018.2},
  annote =	{Keywords: Web development, programming, e-learning, automatic evaluation}
}
Document
Complete Volume
DOI: 10.4230/OASIcs.SLATE.2017
OASIcs, Volume 56, SLATE'17, Complete Volume

Authors: Ricardo Queirós, Mário Pinto, Alberto Simões, José Paulo Leal, and Maria João Varanda

Published in: OASIcs, Volume 56, 6th Symposium on Languages, Applications and Technologies (SLATE 2017)

Abstract
OASIcs, Volume 56, SLATE'17, Complete Volume
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6th Symposium on Languages, Applications and Technologies (SLATE 2017). Open Access Series in Informatics (OASIcs), Volume 56, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2017)

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@Proceedings{queiros_et_al:OASIcs.SLATE.2017,
  title =	{{OASIcs, Volume 56, SLATE'17, Complete Volume}},
  booktitle =	{6th Symposium on Languages, Applications and Technologies (SLATE 2017)},
  series =	{Open Access Series in Informatics (OASIcs)},
  ISBN =	{978-3-95977-056-9},
  ISSN =	{2190-6807},
  year =	{2017},
  volume =	{56},
  editor =	{Queir\'{o}s, Ricardo and Pinto, M\'{a}rio and Sim\~{o}es, Alberto and Leal, Jos\'{e} Paulo and Varanda, Maria Jo\~{a}o},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/OASIcs.SLATE.2017},
  URN =		{urn:nbn:de:0030-drops-80250},
  doi =		{10.4230/OASIcs.SLATE.2017},
  annote =	{Keywords: Programming Languages, Information Search and Retrieval, Natural Language Processing, Document and Text Processing}
}
Document
Front Matter
DOI: 10.4230/OASIcs.SLATE.2017.0
Front Matter, Table of Contents, Preface, Conference Organization

Authors: Ricardo Queirós, Mário Pinto, Alberto Simões, José Paulo Leal, and Maria João Varanda

Published in: OASIcs, Volume 56, 6th Symposium on Languages, Applications and Technologies (SLATE 2017)

Abstract
Front Matter, Table of Contents, Preface,Program Committee, List of Authors
Cite as

6th Symposium on Languages, Applications and Technologies (SLATE 2017). Open Access Series in Informatics (OASIcs), Volume 56, pp. 0:i-0:xvi, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2017)

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@InProceedings{queiros_et_al:OASIcs.SLATE.2017.0,
  author =	{Queir\'{o}s, Ricardo and Pinto, M\'{a}rio and Sim\~{o}es, Alberto and Leal, Jos\'{e} Paulo and Varanda, Maria Jo\~{a}o},
  title =	{{Front Matter, Table of Contents, Preface, Conference Organization}},
  booktitle =	{6th Symposium on Languages, Applications and Technologies (SLATE 2017)},
  pages =	{0:i--0:xvi},
  series =	{Open Access Series in Informatics (OASIcs)},
  ISBN =	{978-3-95977-056-9},
  ISSN =	{2190-6807},
  year =	{2017},
  volume =	{56},
  editor =	{Queir\'{o}s, Ricardo and Pinto, M\'{a}rio and Sim\~{o}es, Alberto and Leal, Jos\'{e} Paulo and Varanda, Maria Jo\~{a}o},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/OASIcs.SLATE.2017.0},
  URN =		{urn:nbn:de:0030-drops-79362},
  doi =		{10.4230/OASIcs.SLATE.2017.0},
  annote =	{Keywords: Front Matter, Table of Contents, Preface, Conference Organization}
}
Document
DOI: 10.4230/OASIcs.SLATE.2017.8
A Survey on CSS Preprocessors

Authors: Ricardo Queirós

Published in: OASIcs, Volume 56, 6th Symposium on Languages, Applications and Technologies (SLATE 2017)

Abstract
In the Web realm, the adoption of Cascading Style Sheets (CSS) is unanimous, being widely used for styling web documents. Despite their intensive use, this W3C specification was written for web designers with limit programming background. Thus, it lack several programming constructs, such as variables, conditional and repetitive blocks, and functions. This absence affects negatively code reuse, and consequently, the maintenance of the styling code. In the last decade, several languages (e.g. Sass, Less) appeared to extend CSS, defined as CSS preprocessors, with the ultimate goal to bring those missing constructs and to foster stylesheets structured programming. The paper provides an introductory survey on CSS Preprocessors. It gathers information on a specific set of preprocessors, categorizes them and compares their features regarding a set of predefined criteria such as: maturity, coverage and performance.
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Ricardo Queirós. A Survey on CSS Preprocessors. In 6th Symposium on Languages, Applications and Technologies (SLATE 2017). Open Access Series in Informatics (OASIcs), Volume 56, pp. 8:1-8:12, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2017)

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@InProceedings{queiros:OASIcs.SLATE.2017.8,
  author =	{Queir\'{o}s, Ricardo},
  title =	{{A Survey on CSS Preprocessors}},
  booktitle =	{6th Symposium on Languages, Applications and Technologies (SLATE 2017)},
  pages =	{8:1--8:12},
  series =	{Open Access Series in Informatics (OASIcs)},
  ISBN =	{978-3-95977-056-9},
  ISSN =	{2190-6807},
  year =	{2017},
  volume =	{56},
  editor =	{Queir\'{o}s, Ricardo and Pinto, M\'{a}rio and Sim\~{o}es, Alberto and Leal, Jos\'{e} Paulo and Varanda, Maria Jo\~{a}o},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/OASIcs.SLATE.2017.8},
  URN =		{urn:nbn:de:0030-drops-79439},
  doi =		{10.4230/OASIcs.SLATE.2017.8},
  annote =	{Keywords: CSS, Preprocessors, Web formatting}
}
Document
DOI: 10.4230/OASIcs.SLATE.2017.13
SOS - Simple Orchestration of Services

Authors: Ricardo Queirós and Alberto Simões

Published in: OASIcs, Volume 56, 6th Symposium on Languages, Applications and Technologies (SLATE 2017)

Abstract
Nowadays, we continue to write redundant code which can often be reused from the Web. Reusing programming tasks is beneficial since it speeds up the process of creating applications and reduces the errors related with the task creation from scratch. At the same time, the demands of our applications are increasing, leading to a simple problem having to be solved through several tasks. With the advent of the cloud, there are countless Web services that proliferate on the Web. One solution for developers is to use these Web Services. However, the process of mastering and coordinating all these services manually is time-consuming and error-prone. This paper presents SOS, a Simple Orchestration of Services. The ultimate goal of this tool is to act as a service composer while promoting the separation of concerns for two typical actors in this realm: the developer and the business analyst. The developer must define a service as a SOS task based on a JSON schema and submit it in a Web specialized editor. The business analyst uses the SOS editor, in an interactive way, to chain the required tasks to solve a specific problem. Then, the developer, uses a a simple client API - a SOS engine wrapper - to load a SOS manifest and to iterate over all tasks, without the need to dominate any bureaucratic aspects related with HTTP clients and messages. As a case study, several tasks are instantiated and aggregated in order to generate a composite service for a mobile app whose goal is to give an translated description of a picture taken with a mobile phone.
Cite as

Ricardo Queirós and Alberto Simões. SOS - Simple Orchestration of Services. In 6th Symposium on Languages, Applications and Technologies (SLATE 2017). Open Access Series in Informatics (OASIcs), Volume 56, pp. 13:1-13:8, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2017)

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@InProceedings{queiros_et_al:OASIcs.SLATE.2017.13,
  author =	{Queir\'{o}s, Ricardo and Sim\~{o}es, Alberto},
  title =	{{SOS - Simple Orchestration of Services}},
  booktitle =	{6th Symposium on Languages, Applications and Technologies (SLATE 2017)},
  pages =	{13:1--13:8},
  series =	{Open Access Series in Informatics (OASIcs)},
  ISBN =	{978-3-95977-056-9},
  ISSN =	{2190-6807},
  year =	{2017},
  volume =	{56},
  editor =	{Queir\'{o}s, Ricardo and Pinto, M\'{a}rio and Sim\~{o}es, Alberto and Leal, Jos\'{e} Paulo and Varanda, Maria Jo\~{a}o},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/OASIcs.SLATE.2017.13},
  URN =		{urn:nbn:de:0030-drops-79472},
  doi =		{10.4230/OASIcs.SLATE.2017.13},
  annote =	{Keywords: Web services, Service Composition, Orchestration}
}
Document
DOI: 10.4230/OASIcs.SLATE.2016.13
Sni'per: a Code Snippet RESTful API

Authors: Ricardo Queirós and Alberto Simões

Published in: OASIcs, Volume 51, 5th Symposium on Languages, Applications and Technologies (SLATE'16) (2016)

Abstract
Today we use the Web for almost everything, even to program. There are several specialized code editors gravitating on the Web and emulating most of the features inherited from traditional IDEs, such as, syntax highlight, code folding, autocompletion and even code refactorization. One of the techniques to speed the code development is the use of snippets as predefined code blocks that can be automatically included in the code. Although several Web editors support this functionality, they come with a limited set of snippets, not allowing the contribution of new blocks of code. Even if that would be possible, they would be available only to the code's owner or to the editors' users through a private cloud repository. This paper describes the design and implementation of Sni'per, a RESTful API that allows public access for multi-language programming code-blocks ordered by popularity. Besides being able to access code snippets from other users and score them, we can also contribute with our own snippets creating a global network of shared code. In order to make coding against this API easier, we create a client library that reduces the amount of code required to write and make the code more robust.
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Ricardo Queirós and Alberto Simões. Sni'per: a Code Snippet RESTful API. In 5th Symposium on Languages, Applications and Technologies (SLATE'16). Open Access Series in Informatics (OASIcs), Volume 51, pp. 13:1-13:11, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2016)

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@InProceedings{queiros_et_al:OASIcs.SLATE.2016.13,
  author =	{Queir\'{o}s, Ricardo and Sim\~{o}es, Alberto},
  title =	{{Sni'per: a Code Snippet RESTful API}},
  booktitle =	{5th Symposium on Languages, Applications and Technologies (SLATE'16)},
  pages =	{13:1--13:11},
  series =	{Open Access Series in Informatics (OASIcs)},
  ISBN =	{978-3-95977-006-4},
  ISSN =	{2190-6807},
  year =	{2016},
  volume =	{51},
  editor =	{Mernik, Marjan and Leal, Jos\'{e} Paulo and Gon\c{c}alo Oliveira, Hugo},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/OASIcs.SLATE.2016.13},
  URN =		{urn:nbn:de:0030-drops-60180},
  doi =		{10.4230/OASIcs.SLATE.2016.13},
  annote =	{Keywords: Programming languages, interoperability, web services, code snippets}
}
Document
DOI: 10.4230/OASIcs.SLATE.2014.93
JSON on Mobile: is there an Efficient Parser?

Authors: Ricardo Queirós

Published in: OASIcs, Volume 38, 3rd Symposium on Languages, Applications and Technologies (2014)

Abstract
The two largest causes for battery consumption on mobile devices are related with the display and network operations. Since most application need to share data and communicate with remote servers, communications should be as lightweight and efficient as possible. In network communication, serialization plays a central role as the process of converting an object into a stream of bytes. One of the most popular data-interchange format is JSON (JavaScript Object Notation). This paper presents a survey on JSON parsers in mobile scenarios. The aim of the survey is to find the most efficient JSON parser in mobile communications characterised by high transfer rate of small amounts of data. In the performance benchmark we compare the time required to read and write data with several popular JSON parser implementations such as Gson, Jackson, org.json and others. The results of this survey are important for others that need to select an efficient parser for mobile communication.
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Ricardo Queirós. JSON on Mobile: is there an Efficient Parser?. In 3rd Symposium on Languages, Applications and Technologies. Open Access Series in Informatics (OASIcs), Volume 38, pp. 93-100, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2014)

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@InProceedings{queiros:OASIcs.SLATE.2014.93,
  author =	{Queir\'{o}s, Ricardo},
  title =	{{JSON on Mobile: is there an Efficient Parser?}},
  booktitle =	{3rd Symposium on Languages, Applications and Technologies},
  pages =	{93--100},
  series =	{Open Access Series in Informatics (OASIcs)},
  ISBN =	{978-3-939897-68-2},
  ISSN =	{2190-6807},
  year =	{2014},
  volume =	{38},
  editor =	{Pereira, Maria Jo\~{a}o Varanda and Leal, Jos\'{e} Paulo and Sim\~{o}es, Alberto},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/OASIcs.SLATE.2014.93},
  URN =		{urn:nbn:de:0030-drops-45629},
  doi =		{10.4230/OASIcs.SLATE.2014.93},
  annote =	{Keywords: serialization formats, mobile communication}
}
Document
DOI: 10.4230/OASIcs.SLATE.2013.83
Seqins - A Sequencing Tool for Educational Resources

Authors: Ricardo Queirós, José Paulo Leal, and José Campos

Published in: OASIcs, Volume 29, 2nd Symposium on Languages, Applications and Technologies (2013)

Abstract
The teaching-learning process is increasingly focused on the combination of the paradigms "learning by viewing" and "learning by doing." In this context, educational resources, either expository or evaluative, play a pivotal role. Both types of resources are interdependent and their sequencing would create a richer educational experience to the end user. However, there is a lack of tools that support sequencing essentially due to the fact that existing specifications are complex. The Seqins is a sequencing tool of digital resources that has a fairly simple sequencing model. The tool communicates through the IMS LTI specification with a plethora of e-learning systems such as learning management systems, repositories, authoring and evaluation systems. In order to validate Seqins we integrate it in an e-learning Ensemble framework instance for the computer programming learning.
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Ricardo Queirós, José Paulo Leal, and José Campos. Seqins - A Sequencing Tool for Educational Resources. In 2nd Symposium on Languages, Applications and Technologies. Open Access Series in Informatics (OASIcs), Volume 29, pp. 83-96, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2013)

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@InProceedings{queiros_et_al:OASIcs.SLATE.2013.83,
  author =	{Queir\'{o}s, Ricardo and Leal, Jos\'{e} Paulo and Campos, Jos\'{e}},
  title =	{{Seqins - A Sequencing Tool for Educational Resources}},
  booktitle =	{2nd Symposium on Languages, Applications and Technologies},
  pages =	{83--96},
  series =	{Open Access Series in Informatics (OASIcs)},
  ISBN =	{978-3-939897-52-1},
  ISSN =	{2190-6807},
  year =	{2013},
  volume =	{29},
  editor =	{Leal, Jos\'{e} Paulo and Rocha, Ricardo and Sim\~{o}es, Alberto},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/OASIcs.SLATE.2013.83},
  URN =		{urn:nbn:de:0030-drops-40326},
  doi =		{10.4230/OASIcs.SLATE.2013.83},
  annote =	{Keywords: e-Learning, Learning management systems, Automatic evaluation}
}
Document
DOI: 10.4230/OASIcs.SLATE.2013.145
CodeSkelGen - A Program Skeleton Generator

Authors: Ricardo Queirós

Published in: OASIcs, Volume 29, 2nd Symposium on Languages, Applications and Technologies (2013)

Abstract
Existent computer programming training environments help users to learn programming by solving problems from scratch. Nevertheless, initiating the resolution of a program can be frustrating and demotivating if the student does not know where and how to start. Skeleton programming facilitates a top-down design approach, where a partially functional system with complete high-level structures is available, so the student needs only to progressively complete or update the code to meet the requirements of the problem. This paper presents CodeSkelGen - a program skeleton generator. CodeSkelGen generates skeleton or buggy Java programs from a complete annotated program solution provided by the teacher. The annotations are formally described within an annotation type and processed by an annotation processor. This processor is responsible for a set of actions ranging from the creation of dummy methods to the exchange of operator types included in the source code. The generator tool will be included in a learning environment that aims to assist teachers in the creation of programming exercises and to help students in their resolution.
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Ricardo Queirós. CodeSkelGen - A Program Skeleton Generator. In 2nd Symposium on Languages, Applications and Technologies. Open Access Series in Informatics (OASIcs), Volume 29, pp. 145-154, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2013)

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@InProceedings{queiros:OASIcs.SLATE.2013.145,
  author =	{Queir\'{o}s, Ricardo},
  title =	{{CodeSkelGen - A Program Skeleton Generator}},
  booktitle =	{2nd Symposium on Languages, Applications and Technologies},
  pages =	{145--154},
  series =	{Open Access Series in Informatics (OASIcs)},
  ISBN =	{978-3-939897-52-1},
  ISSN =	{2190-6807},
  year =	{2013},
  volume =	{29},
  editor =	{Leal, Jos\'{e} Paulo and Rocha, Ricardo and Sim\~{o}es, Alberto},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/OASIcs.SLATE.2013.145},
  URN =		{urn:nbn:de:0030-drops-40350},
  doi =		{10.4230/OASIcs.SLATE.2013.145},
  annote =	{Keywords: Code Generation, Programming Languages, Annotation}
}
Document
Complete Volume
DOI: 10.4230/OASIcs.SLATE.2012
OASIcs, Volume 21, SLATE'12, Complete Volume

Authors: Alberto Simões, Ricardo Queirós, and Daniela da Cruz

Published in: OASIcs, Volume 21, 1st Symposium on Languages, Applications and Technologies (2012)

Abstract
OASIcs, Volume 21, SLATE'12, Complete Volume
Cite as

1st Symposium on Languages, Applications and Technologies. Open Access Series in Informatics (OASIcs), Volume 21, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2012)

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@Proceedings{simoes_et_al:OASIcs.SLATE.2012,
  title =	{{OASIcs, Volume 21, SLATE'12, Complete Volume}},
  booktitle =	{1st Symposium on Languages, Applications and Technologies},
  series =	{Open Access Series in Informatics (OASIcs)},
  ISBN =	{978-3-939897-40-8},
  ISSN =	{2190-6807},
  year =	{2012},
  volume =	{21},
  editor =	{Sim\~{o}es, Alberto and Queir\'{o}s, Ricardo and da Cruz, Daniela},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/OASIcs.SLATE.2012},
  URN =		{urn:nbn:de:0030-drops-35839},
  doi =		{10.4230/OASIcs.SLATE.2012},
  annote =	{Keywords: Interoperability, Programming Languages, Natural Language Processing}
}
Document
Front Matter
DOI: 10.4230/OASIcs.SLATE.2012.i
Frontmatter, Table of Contents, Preface, Committees, List of Authors

Authors: Alberto Simões, Ricardo Queirós, and Daniela da Cruz

Published in: OASIcs, Volume 21, 1st Symposium on Languages, Applications and Technologies (2012)

Abstract
Frontmatter, Table of Contents, Preface, Committees, List of Authors
Cite as

1st Symposium on Languages, Applications and Technologies. Open Access Series in Informatics (OASIcs), Volume 21, pp. i-xvii, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2012)

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@InProceedings{simoes_et_al:OASIcs.SLATE.2012.i,
  author =	{Sim\~{o}es, Alberto and Queir\'{o}s, Ricardo and da Cruz, Daniela},
  title =	{{Frontmatter, Table of Contents, Preface, Committees, List of Authors}},
  booktitle =	{1st Symposium on Languages, Applications and Technologies},
  pages =	{i--xvii},
  series =	{Open Access Series in Informatics (OASIcs)},
  ISBN =	{978-3-939897-40-8},
  ISSN =	{2190-6807},
  year =	{2012},
  volume =	{21},
  editor =	{Sim\~{o}es, Alberto and Queir\'{o}s, Ricardo and da Cruz, Daniela},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/OASIcs.SLATE.2012.i},
  URN =		{urn:nbn:de:0030-drops-35085},
  doi =		{10.4230/OASIcs.SLATE.2012.i},
  annote =	{Keywords: Frontmatter, Table of Contents, Preface, Committees, List of Authors}
}
Document
DOI: 10.4230/OASIcs.SLATE.2012.133
Computing Semantic Relatedness using DBPedia

Authors: José Paulo Leal, Vânia Rodrigues, and Ricardo Queirós

Published in: OASIcs, Volume 21, 1st Symposium on Languages, Applications and Technologies (2012)

Abstract
Extracting the semantic relatedness of terms is an important topic in several areas, including data mining, information retrieval and web recommendation. This paper presents an approach for computing the semantic relatedness of terms using the knowledge base of DBpedia - a community effort to extract structured information from Wikipedia. Several approaches to extract semantic relatedness from Wikipedia using bag-of-words vector models are already available in the literature. The research presented in this paper explores a novel approach using paths on an ontological graph extracted from DBpedia. It is based on an algorithm for finding and weighting a collection of paths connecting concept nodes. This algorithm was implemented on a tool called Shakti that extract relevant ontological data for a given domain from DBpedia using its SPARQL endpoint. To validate the proposed approach Shakti was used to recommend web pages on a Portuguese social site related to alternative music and the results of that experiment are reported in this paper.
Cite as

José Paulo Leal, Vânia Rodrigues, and Ricardo Queirós. Computing Semantic Relatedness using DBPedia. In 1st Symposium on Languages, Applications and Technologies. Open Access Series in Informatics (OASIcs), Volume 21, pp. 133-147, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2012)

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@InProceedings{leal_et_al:OASIcs.SLATE.2012.133,
  author =	{Leal, Jos\'{e} Paulo and Rodrigues, V\^{a}nia and Queir\'{o}s, Ricardo},
  title =	{{Computing Semantic Relatedness using DBPedia}},
  booktitle =	{1st Symposium on Languages, Applications and Technologies},
  pages =	{133--147},
  series =	{Open Access Series in Informatics (OASIcs)},
  ISBN =	{978-3-939897-40-8},
  ISSN =	{2190-6807},
  year =	{2012},
  volume =	{21},
  editor =	{Sim\~{o}es, Alberto and Queir\'{o}s, Ricardo and da Cruz, Daniela},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/OASIcs.SLATE.2012.133},
  URN =		{urn:nbn:de:0030-drops-35190},
  doi =		{10.4230/OASIcs.SLATE.2012.133},
  annote =	{Keywords: semantic similarity, processing wikipedia data, ontology generation, web recommendation}
}

Peixoto de Queirós, Ricardo Alexandre

Document
Complete Volume
DOI: 10.4230/OASIcs.ICPEC.2023
OASIcs, Volume 112, ICPEC 2023, Complete Volume

Authors: Ricardo Alexandre Peixoto de Queirós and Mário Paulo Teixeira Pinto

Published in: OASIcs, Volume 112, 4th International Computer Programming Education Conference (ICPEC 2023)

Abstract
OASIcs, Volume 112, ICPEC 2023, Complete Volume
Cite as

4th International Computer Programming Education Conference (ICPEC 2023). Open Access Series in Informatics (OASIcs), Volume 112, pp. 1-152, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2023)

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@Proceedings{peixotodequeiros_et_al:OASIcs.ICPEC.2023,
  title =	{{OASIcs, Volume 112, ICPEC 2023, Complete Volume}},
  booktitle =	{4th International Computer Programming Education Conference (ICPEC 2023)},
  pages =	{1--152},
  series =	{Open Access Series in Informatics (OASIcs)},
  ISBN =	{978-3-95977-290-7},
  ISSN =	{2190-6807},
  year =	{2023},
  volume =	{112},
  editor =	{Peixoto de Queir\'{o}s, Ricardo Alexandre and Teixeira Pinto, M\'{a}rio Paulo},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/OASIcs.ICPEC.2023},
  URN =		{urn:nbn:de:0030-drops-184951},
  doi =		{10.4230/OASIcs.ICPEC.2023},
  annote =	{Keywords: OASIcs, Volume 112, ICPEC 2023, Complete Volume}
}
Document
Front Matter
DOI: 10.4230/OASIcs.ICPEC.2023.0
Front Matter, Table of Contents, Preface, Conference Organization

Authors: Ricardo Alexandre Peixoto de Queirós and Mário Paulo Teixeira Pinto

Published in: OASIcs, Volume 112, 4th International Computer Programming Education Conference (ICPEC 2023)

Abstract
Front Matter, Table of Contents, Preface, Conference Organization
Cite as

4th International Computer Programming Education Conference (ICPEC 2023). Open Access Series in Informatics (OASIcs), Volume 112, pp. 0:i-0:xii, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2023)

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@InProceedings{peixotodequeiros_et_al:OASIcs.ICPEC.2023.0,
  author =	{Peixoto de Queir\'{o}s, Ricardo Alexandre and Teixeira Pinto, M\'{a}rio Paulo},
  title =	{{Front Matter, Table of Contents, Preface, Conference Organization}},
  booktitle =	{4th International Computer Programming Education Conference (ICPEC 2023)},
  pages =	{0:i--0:xii},
  series =	{Open Access Series in Informatics (OASIcs)},
  ISBN =	{978-3-95977-290-7},
  ISSN =	{2190-6807},
  year =	{2023},
  volume =	{112},
  editor =	{Peixoto de Queir\'{o}s, Ricardo Alexandre and Teixeira Pinto, M\'{a}rio Paulo},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/OASIcs.ICPEC.2023.0},
  URN =		{urn:nbn:de:0030-drops-184969},
  doi =		{10.4230/OASIcs.ICPEC.2023.0},
  annote =	{Keywords: Front Matter, Table of Contents, Preface, Conference Organization}
}
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