Model checking
CADP - A Protocol Validation and Verification Toolbox
CAV '96 Proceedings of the 8th International Conference on Computer Aided Verification
Validating timed UML models by simulation and verification
International Journal on Software Tools for Technology Transfer (STTT) - Special Section on Specification and Validation of Models of Real Time and Embedded Systems with UML
Software engineering and formal methods
Communications of the ACM - Enterprise information integration: and other tools for merging data
Meaningful Composite Structures
MoDELS '08 Proceedings of the 11th international conference on Model Driven Engineering Languages and Systems
Model checking: algorithmic verification and debugging
Communications of the ACM - Scratch Programming for All
OMEGA2: A New Version of the Profile and the Tools
ICECCS '10 Proceedings of the 2010 15th IEEE International Conference on Engineering of Complex Computer Systems
Unambiguous UML composite structures: the OMEGA2 experience
SOFSEM'11 Proceedings of the 37th international conference on Current trends in theory and practice of computer science
Modeling and validation of a software architecture for the ariane-5 launcher
FMOODS'06 Proceedings of the 8th IFIP WG 6.1 international conference on Formal Methods for Open Object-Based Distributed Systems
Seeing errors: model driven simulation trace visualization
MODELS'12 Proceedings of the 15th international conference on Model Driven Engineering Languages and Systems
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Recent years have seen a manifest increase in the use of modelling by the embedded systems industry. UML and SysML are two examples of languages used in this context. One of the reasons why the use of models is interesting is the possibility to perform early verification, validation and testing. A lot of work was devoted to developing theoretical results in verification and validation, and interesting results are available. Integrating these results in frameworks that take high-level models as an entry remains a challenging task, for several reasons that include the difficult scalability of the theoretical results. In previous work, we presented OMEGA 2, a framework that takes this challenge. Applying our framework on large industrial models revealed the fact that some features of the UML/SysML semantics which lead to bottlenecks in verification are not actually necessary in the models that we considered, thus leaving place for optimisations. This paper discusses the gap existing between the choices made in the general UML/SysML semantic framework and the actual needs of the users. We illustrate it based on the semantics of ports, for which we give a simplified version of the semantics. This semantics was implemented in our tools and we quantify the optimisation obtained when applying it to a set of case studies.