Formal Modeling and Analysis of AADL Threads in Real Time Maude

This paper presents, without altering the AADL meta-model, a formal description of static and behavioral aspects of the AADL thread component. This active and concurrent applicative component of AADL poses many challenges to its formalization and analysis including instantaneous and/or delayed communications, concurrent tasks and time- depen-dent features, and the need to analyze correctness. This formalization, based on real-time object-oriented theories, al-lows not only a precise description of the semantics of threads composition with respect to their timing requirements but also makes possible the formal verification of behavioral properties. 1