Abstract
Formal methods provide tools to verify the consistency and correctness of a specification with respect to the desired properties of the system. This verification is important as the development of an AAL (Ambient Assisted Living) system involves different technologies (medical services, surveillance cameras, intelligent devices, etc.) requiring a strong consistency checking between models. We illustrate in this paper how we prove some of the properties of the system before the development even starts. To model the AAL system, we use the SysML language. In terms of tools, we used Rational Rhapsody in combination with the OMEGA2 profile which is an executable Uml/SysML profile used for the formal specification and validation of critical real-time systems. This profile is supported by the IFx toolset which provides mechanisms for the model simulation and properties verification of the AAL system.
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