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In this paper, we describe the incremental specification of a power transformer station controller using a controller synthesis methodology. We specify the main requirements as simple properties, named control objectives, that the controlled plant has to satisfy. Then, using algebraic tec hniques, the controller is automatically derived from these set of con trol objectiv es. In our case, the plan...
We present a methodology for the verification of reactive systems, and its application to a case study. Systems are specified using the synchronous data flow language Signal. As this language is based on an equational approach (i.e. Signal programs are constraint equations between signals), it is natural to translate its Boolean part into a system of polynomial equations over three values denoting...
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