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Theses

Application of Model-Driven Engineering and Metaprogramming to DEVS Modeling & Simulation

Abstract : The multiplication of software environments supporting DEVS Modeling & Simulation is becoming a hindrance to scientific collaboration. Indeed, the use of disparate tools in the community makes the exchange, reuse and comparison of models very difficult, preventing practitioners from building on previous works to devise models of ever-increasing complexity. Tool interoperability is not the only issue raised by the need for models of higher and higher complexity. As models grow, their development becomes more error-prone, and their simulation becomes more resource-consuming. Consequently, it is necessary to devise techniques for improving simulators performance and for providing thorough model verification to assist the practitioner during model design. In this thesis, we propose two innovative approaches for DEVS Modeling & Simulation that tackle the aforementioned issues. The first contribution described in this document is a model-driven environment for modeling systems with the DEVS formalism, named SimStudio. This environment relies on Model-Driven Engineering to provide a high-level framework where practitioners can create, edit and visualize models, and automatically generate multiple artifacts, most notably model specifications compatible with various DEVS simulators. The core of SimStudio is a platform-independent metamodel of the DEVS formalism, which provides a pivot format for DEVS models. Based on this metamodel, we developed several model verification features as well as many model transformations that can be used to automatically generate documentation, diagrams or code targeting various DEVS platforms. Thus, SimStudio gives a proof of concept of the integration capabilities that a DEVS standard would provide; as a matter of fact, the metamodel presented in this thesis could possibly serve as a basis for such a standard. The second contribution of this thesis is DEVS-MetaSimulator (DEVS-MS), a DEVS library relying on metaprogramming to generate simulation executables that are specialized and optimized for the model they handle. To do so, the library performs many computations during compilation, resulting in a simulation code where most overhead have been eliminated. The tests we conducted showed that the generated programs were very efficient, but the performance gain is not the only feature of DEVS-MS. Indeed, through metaprogramming, DEVS-MS can also assert the correctness of models by verifying model characteristics at compile-time, detecting and reporting modeling errors very early in the development cycle and with better confidence than what could be achieved with classical testing.
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Luc Touraille. Application of Model-Driven Engineering and Metaprogramming to DEVS Modeling & Simulation. Other. Université Blaise Pascal - Clermont-Ferrand II, 2012. English. ⟨NNT : 2012CLF22308⟩. ⟨tel-00914327⟩

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