Abstract
The usage of formal description techniques has arisen as a promising way to deal with the increasing complexity of the embedded real-time systems. However, these techniques do not take into account relevant non-functional aspects as realtime constraints and hardware interaction. This is the case of the Specification and Description Language (SDL), one of the most used formal techniques. In this paper, different mechanisms to improve SDL real-time expressiveness and prevent real-time anomalies are presented. In addition, a new predictable execution model for SDL and its associated analysis technique are introduced to make possible the real-time analysis of the systems implemented.
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