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The paper discusses the use of formal methods for the analysis of architectural models expressed in the modeling language AADL. AADL describes the system as a collection of interacting components. The AADL standard prescribes semantics for the thread components and rules of interaction between threads and other components in the system. We present a(More)
VERSA is a tool that assists in the algebraic analysis of real-time systems. It is based on ACSR, a timed process algebra designed to express resource-bound real-time distributed systems. VERSA is designed to be both a usable and useful tool for the analysis of ACSR speciications. Usability is assured by a exible user interface that uses ACSR's traditional(More)
Verifying timing properties of real-time systems by traditional approaches that depend on the exploration of the entire system state space is impractical for large systems. In contrast, testing allows the search for violations of a property to be narrowed to a relatively small portion of the overall state space, based on assumptions regarding the structure(More)
We present a toolset for the behavioral verification and validation of architectural models of embedded systems expressed in the language AADL. The toolset provides simulation and timing analysis of AADL models. Underlying both tools is a process-algebraic implementation of AADL semantics. The common implementation of the semantics ensures consistency in(More)