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The behavior of composed Web services depends on the results of the invoked services; unexpected behavior of one of the invoked services can threat the correct execution of an entire composition. This paper proposes an event‐based approach to black‐box testing of Web service compositions based on event sequence graphs, which are extended by facilities to deal not only with service behavior under regular...
A go-back (GB) function for canceling recent user or system operations and going back to and resuming of previous state(s) is very often used regardless of the application domain. Therefore, faulty handling of them can cause severe damages in those applications. This paper proposes a mutation-based approach to testing GB functions modeled by pushdown automata. Novel mutation operators, recent coverage...
VHDL programs are often tested by means of simulations, relying on test benches written intuitively. In this paper, we propose a formal approach to construct test benches from system specification. To consider the real-time properties of VHDL programs, we first transform them to timed automata and then perform model checking against the properties designated from the specification. Counterexamples...
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