A Method for Testing the Conformance of Real Time Systems

  • Authors:
  • Ahmed Khoumsi

  • Affiliations:
  • -

  • Venue:
  • FTRTFT '02 Proceedings of the 7th International Symposium on Formal Techniques in Real-Time and Fault-Tolerant Systems: Co-sponsored by IFIP WG 2.2
  • Year:
  • 2002

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Abstract

The aim of conformance testing is to check whether an implementation conforms to a specification. We consider the case where the specification contains timing constraints and is described by a model called Timed Automata (TA). The state space of a TA can be infinite due to the infinite number of time values. In a recent work, we proposed a method to finitely represent the state space. The proposed method transforms a TA into an equivalent finite state automaton using two special types of events, Set and Exp, and denoted se-FSA.In the present article, we propose a conformance testing method which is applicable when the specification is described by a TA. First, we use the above-mentioned transformation procedure for representing the specification by a se-FSA. Second, we propose a procedure for generating test sequences from the se-FSA describing the specification. And third, we propose a simple architecture for executing the generated test sequences.