Communicating sequential processes
Communicating sequential processes
Concurrency: state models & Java programs
Concurrency: state models & Java programs
Spin model checker, the: primer and reference manual
Spin model checker, the: primer and reference manual
Environmental Modelling & Software
FSP and FLTL framework for specification and verification of middle-agents
International Journal of Applied Mathematics and Computer Science - Semantic Knowledge Engineering
View-based development of a simulation framework for multi-disciplinary environmental modelling
Proceedings of the 17th Monterey conference on Large-Scale Complex IT Systems: development, operation and management
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The coordination of time-dependent simulation models is an important problem in environmental systems engineering. We propose a solution based on a rigorous formal modelling of the participating processes. Methodologically, our approach is driven by property processes which are used for the formal specification of the coordination problem. Property processes are supported by the CSP-like language FSP of Magee and Kramer which will be used throughout this paper for modelling the system requirements and the system design. The heart of our design model is a global time controller which coordinates distributed simulation models according to their local time scales. We will show with model checking techniques that all safety and liveness requirements are guaranteed by the timecontroller design. The strong practical relevance of the approach is ensured by the fact that our strategy is used to produce a formally verified design for the kernel of the integrative simulation system DANUBIA developed within the GLOWA-Danube project.