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International Conference on Risks and Security of Internet and Systems

CRiSIS 2022: Risks and Security of Internet and Systems pp 153–168Cite as

Modeling Train Systems: From High-Level Architecture Graphical Models to Formal Specifications

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Part of the book series: Lecture Notes in Computer Science ((LNCS,volume 13857))

Abstract

Model Driven Engineering (MDE) is a software development methodology applied on complex systems, which are composed of many interacting components. This paper proposes a holistic approach based on MDE for modeling and formally verifying the high-level architectures of such systems, in particular railway systems. The approach contains a three-step process. The first one consists in proposing a high-level architecture modeling using SysML. It produces graphical models of system components, represents and documents the system in a simple way to be discussed with stakeholders and allows them to verify if this architecture corresponds to their expected requirements. We have selected diagrams that facilitate SysML high-level architecture design, namely package, block-definition, state-transition and sequence diagrams. The second step consists in transforming SysML models to Event-B formal models. The input meta-models are those of SysML, the output one is the Event-B meta-model. All of them have been adapted to our objectives. The last step is the verification of Event-B formal specifications using provers, model-checkers and animators. Formal specifications are specifically recommended for complex critical systems with high level of integrity to verify their correctness, accuracy and to allow a complete check of the entire system states and properties. We illustrate this approach on a case study of emerging standard of the ATO system running over ERTMS where compliance with the normative documents will ensure the achievement of a number of safety objectives while providing a graphical representation understandable by domain experts.

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Notes

  1. 1.

    https://standards.globalspec.com/std/2023439/afnor-nf-en-50128.

  2. 2.

    https://www.eumonitor.eu/9353000/1/j9vvik7m1c3gyxp/vk4exsggptu4.

  3. 3.

    https://www.era.europa.eu/content/set-specifications-3-etcs-b3-r2-gsm-r-b1_en.

  4. 4.

    http://app.ontorail.org:8060/ontorailWiki/index.php/Main_Page.

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Acknowledgement

This research work contributes to the french collaborative project TFA (autonomous freight train), with SNCF, Alstom Transport, Hitachi Rail STS, Capgemini Engineering and Apsys. It was carried out in the framework of IRT Railenium, Valenciennes, France, and therefore was granted public funds within the scope of the French Program “Investissements d’Avenir”.

Author information

Authors and Affiliations

  1. Institut de Recherche Technologique Railenium, 59300, Famars, France

    Racem Bougacha & Rahma Ben Ayed

  2. Université Paris-Est Créteil LACL, 94010, Créteil, France

    Régine Laleau

  3. COSYS-ESTAS, Univ. Gustave Eiffel, 59650, Villeneuve d’Ascq, France

    Racem Bougacha, Philippe Bon & Simon Collart-Dutilleul

Authors
  1. Racem Bougacha
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  2. Régine Laleau
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  3. Philippe Bon
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  4. Simon Collart-Dutilleul
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  5. Rahma Ben Ayed
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Corresponding author

Correspondence to Racem Bougacha .

Editor information

Editors and Affiliations

  1. University of Sfax, Sfax, Tunisia

    Slim Kallel

  2. University of Sfax, Sfax, Tunisia

    Mohamed Jmaiel

  3. Queen's University, Kingston, ON, Canada

    Mohammad Zulkernine

  4. University of Sfax, Sfax, Tunisia

    Ahmed Hadj Kacem

  5. Polytechnique Montréal, Montréal, QC, Canada

    Frédéric Cuppens

  6. Polytechnique Montréal, Montréal, QC, Canada

    Nora Cuppens

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Bougacha, R., Laleau, R., Bon, P., Collart-Dutilleul, S., Ben Ayed, R. (2023). Modeling Train Systems: From High-Level Architecture Graphical Models to Formal Specifications. In: Kallel, S., Jmaiel, M., Zulkernine, M., Hadj Kacem, A., Cuppens, F., Cuppens, N. (eds) Risks and Security of Internet and Systems. CRiSIS 2022. Lecture Notes in Computer Science, vol 13857. Springer, Cham. https://doi.org/10.1007/978-3-031-31108-6_12

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  • DOI: https://doi.org/10.1007/978-3-031-31108-6_12

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  • Online ISBN: 978-3-031-31108-6

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