Petri nets: an introduction
Advances in Petri nets 1986, part I on Petri nets: central models and their properties
Synchronous programming with events and relations: the SIGNAL language and its semantics
Science of Computer Programming
Proof, language, and interaction
Time, clocks, and the ordering of events in a distributed system
Communications of the ACM
Modeling statecharts and activitycharts as signal equations
ACM Transactions on Software Engineering and Methodology (TOSEM)
Synchronous Programming of Reactive Systems
Synchronous Programming of Reactive Systems
Checking Safety Properties Using Induction and a SAT-Solver
FMCAD '00 Proceedings of the Third International Conference on Formal Methods in Computer-Aided Design
Timing Analysis of UML Activity Diagrams
«UML» '01 Proceedings of the 4th International Conference on The Unified Modeling Language, Modeling Languages, Concepts, and Tools
A study of the recoverability of computing systems.
A study of the recoverability of computing systems.
A discrete-time UML semantics for concurrency and communication in safety-critical applications
Science of Computer Programming - Formal methods for components and objects pragmatic aspects and applications
N-synchronous Kahn networks: a relaxed model of synchrony for real-time systems
Conference record of the 33rd ACM SIGPLAN-SIGACT symposium on Principles of programming languages
Simulation of Multi-Formalism Models with ModHel'X
ICST '08 Proceedings of the 2008 International Conference on Software Testing, Verification, and Validation
Compiling Esterel
Systems Engineering with SysML/UML: Modeling, Analysis, Design
Systems Engineering with SysML/UML: Modeling, Analysis, Design
On the Semantics of UML/MARTE Clock Constraints
ISORC '09 Proceedings of the 2009 IEEE International Symposium on Object/Component/Service-Oriented Real-Time Distributed Computing
Computing SyncCharts Reactions
Electronic Notes in Theoretical Computer Science (ENTCS)
Semantics and Verification of Data Flow in UML 2.0 Activities
Electronic Notes in Theoretical Computer Science (ENTCS)
A framework for comparing models of computation
IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems
MODELS'07 Proceedings of the 10th international conference on Model Driven Engineering Languages and Systems
A real-time architecture design language for multi-rate embedded control systems
Proceedings of the 2010 ACM Symposium on Applied Computing
Logical time: specification vs. implementation
ACM SIGSOFT Software Engineering Notes
Time properties verification framework for UML-MARTE safety critical real-time systems
ECMFA'12 Proceedings of the 8th European conference on Modelling Foundations and Applications
Scenario-based verification in presence of variability using a synchronous approach
Frontiers of Computer Science: Selected Publications from Chinese Universities
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The UML Profile for Modeling and Analysis of Real-Time and Embedded (MARTE) systems has recently been adopted by the OMG. Its Time Model extends the informal and simplistic Simple Time package proposed by UML2 and offers a broad range of capabilities required to model real-time systems including discrete/dense and chronometric/logical time. MARTE OMG specification introduces a Time Structure inspired by Time models of the concurrency theory and proposes a new clock constraint specification language (CCSL) to specify, within the context of UML, logical and chronometric time constraints. This paper introduces the formal semantics of a fundamental subset of CCSL clock constraints and proposes a process to use CCSL both as a high-level specification language for UML models and as a golden model to verify the conformance of implementations with the specification. A digital filtering video application is used as a running example to support the discussion. The application is first formally specified with CCSL and the specification is refined based on feedback from our CCSL-dedicated simulator. In a second phase, an Esterel program of the application is considered. This program is instrumented with observers derived from the CCSL specification. Esterel Studio formal verification facilities are then used to check the conformity of the Esterel implementation with the CCSL specification. A specific library of Esterel observers has been built for this purpose.