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Documents authored by Zschaler, Steffen

Document
DOI: 10.4230/DagRep.12.9.20
Model-Driven Engineering of Digital Twins (Dagstuhl Seminar 22362)

Authors: Loek Cleophas, Thomas Godfrey, Djamel Eddine Khelladi, Daniel Lehner, Benoit Combemale, Bernhard Rumpe, and Steffen Zschaler

Published in: Dagstuhl Reports, Volume 12, Issue 9 (2023)

Abstract
This report documents the program and the outcomes of Dagstuhl Seminar 22362 "Model-Driven Engineering of Digital Twins". Digital twins are an emerging concept with the potential for revolutionising the way we interact with the physical world. Digital twins can be used for improved analysis and understanding of complex systems as well as for control and transformation of these systems. Digital twins are themselves complex software systems, posing novel software-engineering challenges, which have so far not been sufficiently addressed by the software-engineering research community. The seminar aimed as a key outcome to contribute to a solid research roadmap for the new Software Engineering subdiscipline of Model-Based Development of Digital Twins. This paper is an intermediate result, which is thought to be further discussed in the research community that has also been built using this seminar.
Cite as

Loek Cleophas, Thomas Godfrey, Djamel Eddine Khelladi, Daniel Lehner, Benoit Combemale, Bernhard Rumpe, and Steffen Zschaler. Model-Driven Engineering of Digital Twins (Dagstuhl Seminar 22362). In Dagstuhl Reports, Volume 12, Issue 9, pp. 20-40, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2023)

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@Article{cleophas_et_al:DagRep.12.9.20,
  author =	{Cleophas, Loek and Godfrey, Thomas and Khelladi, Djamel Eddine and Lehner, Daniel and Combemale, Benoit and Rumpe, Bernhard and Zschaler, Steffen},
  title =	{{Model-Driven Engineering of Digital Twins (Dagstuhl Seminar 22362)}},
  pages =	{20--40},
  journal =	{Dagstuhl Reports},
  ISSN =	{2192-5283},
  year =	{2023},
  volume =	{12},
  number =	{9},
  editor =	{Combemale, Benoit and Rumpe, Bernhard and Zschaler, Steffen},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/DagRep.12.9.20},
  URN =		{urn:nbn:de:0030-drops-178080},
  doi =		{10.4230/DagRep.12.9.20},
  annote =	{Keywords: Software Engineering, Model-Driven Engineering, Digital Twins, Model Management, Data Management, Models@runtime}
}
Document
DOI: 10.4230/DagRep.9.11.97
Composing Model-Based Analysis Tools (Dagstuhl Seminar 19481)

Authors: Francisco Durán, Robert Heinrich, Diego Pérez-Palacín, Carolyn L. Talcott, and Steffen Zschaler

Published in: Dagstuhl Reports, Volume 9, Issue 11 (2020)

Abstract
This report documents the program and the outcomes of the Dagstuhl Seminar 19481 "Composing Model-Based Analysis Tools". The key objective of the seminar was to provide more flexibility in model-driven engineering by bringing together representatives from industry and researchers in the formal methods and software engineering communities to establishing the foundations for a common understanding on the modularity and composition of modeling languages and model-based analyses.
Cite as

Francisco Durán, Robert Heinrich, Diego Pérez-Palacín, Carolyn L. Talcott, and Steffen Zschaler. Composing Model-Based Analysis Tools (Dagstuhl Seminar 19481). In Dagstuhl Reports, Volume 9, Issue 11, pp. 97-116, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2020)

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@Article{duran_et_al:DagRep.9.11.97,
  author =	{Dur\'{a}n, Francisco and Heinrich, Robert and P\'{e}rez-Palac{\'\i}n, Diego and Talcott, Carolyn L. and Zschaler, Steffen},
  title =	{{Composing Model-Based Analysis Tools (Dagstuhl Seminar 19481)}},
  pages =	{97--116},
  journal =	{Dagstuhl Reports},
  ISSN =	{2192-5283},
  year =	{2020},
  volume =	{9},
  number =	{11},
  editor =	{Dur\'{a}n, Francisco and Heinrich, Robert and P\'{e}rez-Palac{\'\i}n, Diego and Talcott, Carolyn L. and Zschaler, Steffen},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/DagRep.9.11.97},
  URN =		{urn:nbn:de:0030-drops-119853},
  doi =		{10.4230/DagRep.9.11.97},
  annote =	{Keywords: Modelling, Simulation, Semantics, Formal Methods, Software Engineering}
}
Document
DOI: 10.4230/OASIcs.ICCSW.2012.49
Improving the Quality of Distributed Composite Service Applications

Authors: Dionysios Efstathiou, Peter McBurney, Noël Plouzeau, and Steffen Zschaler

Published in: OASIcs, Volume 28, 2012 Imperial College Computing Student Workshop

Abstract
Dynamic service composition promotes the on-the-fly creation of value-added applications by combining services. Large scale, dynamic distributed applications, like those in the pervasive computing domain, pose many obstacles to service composition such as mobility, and resource availability. In such environments, a huge number of possible composition configurations may provide the same functionality, but only some of those may exhibit the desirable non-functional qualities (e.g. low battery consumption and response time) or satisfy users' preferences and constraints. The goal of a service composition optimiser is to scan the possible composition plans to detect these that are optimal in some sense (e.g. maximise availability or minimise data latency) with acceptable performance (e.g. relatively fast for the application domain). However, the majority of the proposed optimisation approaches for finding optimal composition plans, examine only the Quality of Service of each participated service in isolation without studying how the services are composed together within the composition. We argue that the consideration of multiple factors when searching for the optimal composition plans, such as which services are selected to participate in the composition, how these services are coordinated, communicate and interact within a composition, may improve the end-to-end quality of composite applications.
Cite as

Dionysios Efstathiou, Peter McBurney, Noël Plouzeau, and Steffen Zschaler. Improving the Quality of Distributed Composite Service Applications. In 2012 Imperial College Computing Student Workshop. Open Access Series in Informatics (OASIcs), Volume 28, pp. 49-55, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2012)

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@InProceedings{efstathiou_et_al:OASIcs.ICCSW.2012.49,
  author =	{Efstathiou, Dionysios and McBurney, Peter and Plouzeau, No\"{e}l and Zschaler, Steffen},
  title =	{{Improving the Quality of Distributed Composite Service Applications}},
  booktitle =	{2012 Imperial College Computing Student Workshop},
  pages =	{49--55},
  series =	{Open Access Series in Informatics (OASIcs)},
  ISBN =	{978-3-939897-48-4},
  ISSN =	{2190-6807},
  year =	{2012},
  volume =	{28},
  editor =	{Jones, Andrew V.},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/OASIcs.ICCSW.2012.49},
  URN =		{urn:nbn:de:0030-drops-37649},
  doi =		{10.4230/OASIcs.ICCSW.2012.49},
  annote =	{Keywords: Service Composition, Optimisation, Dynamism, Evolution}
}
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