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TESL: A Model with Metric Time for Modeling and Simulation

Authors Hai Nguyen Van , Frédéric Boulanger , Burkhart Wolff

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Hai Nguyen Van
  • Université Paris-Saclay, CNRS, LRI, Orsay, France
Frédéric Boulanger
  • Université Paris-Saclay, CNRS, LRI, CentraleSupélec, Orsay, France
Burkhart Wolff
  • Université Paris-Saclay, CNRS, LRI, Orsay, France

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Hai Nguyen Van, Frédéric Boulanger, and Burkhart Wolff. TESL: A Model with Metric Time for Modeling and Simulation. In 27th International Symposium on Temporal Representation and Reasoning (TIME 2020). Leibniz International Proceedings in Informatics (LIPIcs), Volume 178, pp. 15:1-15:15, Schloss Dagstuhl - Leibniz-Zentrum für Informatik (2020)


Real-time and distributed systems are increasingly finding their way into critical embedded systems. On one side, computations need to be achieved within specific time constraints. On the other side, computations may be spread among various units which are not necessarily sharing a global clock. Our study is focused on a specification language - named TESL - used for coordinating concurrent models with timed constraints. We explore various questions related to time when modeling systems, and aim at showing that TESL can be introduced as a reasonable balance of expressiveness and decidability to tackle issues in complex systems. This paper introduces (1) an overview of the TESL language and its main properties (polychrony, stutter-invariance, coinduction for simulation), (2) extensions to the language and their applications.

Subject Classification

ACM Subject Classification
  • Theory of computation → Timed and hybrid models
  • Timed Systems
  • Semantics
  • Models
  • Simulation


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