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Documents authored by Franceschetti, Marco

Document
DOI: 10.4230/LIPIcs.TIME.2024.4
Agile Controllability of Simple Temporal Networks with Uncertainty and Oracles

Authors: Johann Eder, Roberto Posenato, Carlo Combi, Marco Franceschetti, and Franziska S. Hollauf

Published in: LIPIcs, Volume 318, 31st International Symposium on Temporal Representation and Reasoning (TIME 2024)

Abstract
Simple temporal networks with uncertainty (STNUs) have achieved wide attention and are the basis of many applications requiring the representation of temporal constraints and checking whether they are conflicting. Dynamic controllability is currently the most relaxed notion to check whether a system can be controlled without violating temporal constraints despite uncertainties. However, dynamic controllability assumes that the actual duration of a contingent activity is only known when the end event of this activity takes place. The recently introduced notion of agile controllability considers when this duration is known earlier, leading to a more relaxed notion of temporal feasibility. We extend the definition of STNUs to STNUOs (Simple Temporal Networks with Uncertainty and Oracles) to represent the point in time at which information about a contingent duration is available. We formally define agile controllability as a generalization of dynamic controllability considering the timepoints of information availability. We propose a set of constraint propagation rules for STNUOs leading to an algorithm for checking agile controllability.
Cite as

Johann Eder, Roberto Posenato, Carlo Combi, Marco Franceschetti, and Franziska S. Hollauf. Agile Controllability of Simple Temporal Networks with Uncertainty and Oracles. In 31st International Symposium on Temporal Representation and Reasoning (TIME 2024). Leibniz International Proceedings in Informatics (LIPIcs), Volume 318, pp. 4:1-4:16, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2024)

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@InProceedings{eder_et_al:LIPIcs.TIME.2024.4,
  author =	{Eder, Johann and Posenato, Roberto and Combi, Carlo and Franceschetti, Marco and Hollauf, Franziska S.},
  title =	{{Agile Controllability of Simple Temporal Networks with Uncertainty and Oracles}},
  booktitle =	{31st International Symposium on Temporal Representation and Reasoning (TIME 2024)},
  pages =	{4:1--4:16},
  series =	{Leibniz International Proceedings in Informatics (LIPIcs)},
  ISBN =	{978-3-95977-349-2},
  ISSN =	{1868-8969},
  year =	{2024},
  volume =	{318},
  editor =	{Sala, Pietro and Sioutis, Michael and Wang, Fusheng},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/LIPIcs.TIME.2024.4},
  URN =		{urn:nbn:de:0030-drops-212115},
  doi =		{10.4230/LIPIcs.TIME.2024.4},
  annote =	{Keywords: Temporal constraint networks, contingent durations, agile controllability}
}
Document
Invited Talk
DOI: 10.4230/LIPIcs.TIME.2020.3
Time and Business Process Management: Problems, Achievements, Challenges (Invited Talk)

Authors: Johann Eder and Marco Franceschetti

Published in: LIPIcs, Volume 178, 27th International Symposium on Temporal Representation and Reasoning (TIME 2020)

Abstract
Processes have been successfully introduced for modeling dynamic phenomena in many areas like business, production, health care, etc. Many of these applications require to adequately deal with temporal aspects. Process models need to express temporal durations, temporal constraints like allowed time between events, and deadlines. For checking the correctness of process definitions with temporal constraints, different notions and algorithms have been developed. Schedules for the execution of processes can be computed and proactive time management supports process managers to avoid time failures during the execution of a process. We present an overview of the problems and the requirements for treating time in business processes and the solutions achieved by applying results and techniques of research in temporal representation and reasoning. We reflect where expectations have not yet been met and sketch challenges in temporal representation and reasoning for addressing advanced requirements of the management of business processes.
Cite as

Johann Eder and Marco Franceschetti. Time and Business Process Management: Problems, Achievements, Challenges (Invited Talk). In 27th International Symposium on Temporal Representation and Reasoning (TIME 2020). Leibniz International Proceedings in Informatics (LIPIcs), Volume 178, pp. 3:1-3:8, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2020)

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@InProceedings{eder_et_al:LIPIcs.TIME.2020.3,
  author =	{Eder, Johann and Franceschetti, Marco},
  title =	{{Time and Business Process Management: Problems, Achievements, Challenges}},
  booktitle =	{27th International Symposium on Temporal Representation and Reasoning (TIME 2020)},
  pages =	{3:1--3:8},
  series =	{Leibniz International Proceedings in Informatics (LIPIcs)},
  ISBN =	{978-3-95977-167-2},
  ISSN =	{1868-8969},
  year =	{2020},
  volume =	{178},
  editor =	{Mu\~{n}oz-Velasco, Emilio and Ozaki, Ana and Theobald, Martin},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/LIPIcs.TIME.2020.3},
  URN =		{urn:nbn:de:0030-drops-129716},
  doi =		{10.4230/LIPIcs.TIME.2020.3},
  annote =	{Keywords: Business Process management, Temporal constraints, Scheduling, Process Evolution, Probabilistic Controllability}
}
Document
DOI: 10.4230/LIPIcs.TIME.2020.4
Negotiating Temporal Commitments in Cross-Organizational Business Processes

Authors: Marco Franceschetti and Johann Eder

Published in: LIPIcs, Volume 178, 27th International Symposium on Temporal Representation and Reasoning (TIME 2020)

Abstract
Cross-organizational business processes emerge from the cooperation of intra-organizational business processes through exchange of messages. The involved parties agree on communication protocols, which contain in particular temporal constraints: as obligations on one hand, and as guarantees on the other hand. These constraints form also requirements for the design of the hidden implementation of the processes and are the basis for control decisions for each party. We present a comprehensive methodology for modeling the temporal aspects of cross-organizational business processes, checking dynamic controllability of such processes, and supporting the negotiation of temporal commitments. We do so by computing the consequences of temporal constraints in choreographies, and by computing the weakest preconditions for the dynamic controllability of a participating process.
Cite as

Marco Franceschetti and Johann Eder. Negotiating Temporal Commitments in Cross-Organizational Business Processes. In 27th International Symposium on Temporal Representation and Reasoning (TIME 2020). Leibniz International Proceedings in Informatics (LIPIcs), Volume 178, pp. 4:1-4:15, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2020)

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@InProceedings{franceschetti_et_al:LIPIcs.TIME.2020.4,
  author =	{Franceschetti, Marco and Eder, Johann},
  title =	{{Negotiating Temporal Commitments in Cross-Organizational Business Processes}},
  booktitle =	{27th International Symposium on Temporal Representation and Reasoning (TIME 2020)},
  pages =	{4:1--4:15},
  series =	{Leibniz International Proceedings in Informatics (LIPIcs)},
  ISBN =	{978-3-95977-167-2},
  ISSN =	{1868-8969},
  year =	{2020},
  volume =	{178},
  editor =	{Mu\~{n}oz-Velasco, Emilio and Ozaki, Ana and Theobald, Martin},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/LIPIcs.TIME.2020.4},
  URN =		{urn:nbn:de:0030-drops-129729},
  doi =		{10.4230/LIPIcs.TIME.2020.4},
  annote =	{Keywords: Cross-organizational processes, Temporal parameters, Range negotiation}
}
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