Automated systematic testing for constraint-based interactive services, in Proceedings of the 8th ACM SIGSOFT international symposium on Foundations of software engineering: twenty-first century applications, ser. SIGSOFT '00/FSE-8. ABSTRACT Constraint-based languages can express in a concise way the complex logic of a new generation of interactive services for applications such as banking or stock trading, that must support multiple types of interfaces for accessing the same data. These

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... automatic speech-recognition interfaces where inputs may be provided in any order by users of the service. We study in this paper how to systematically test event-driven applications developed using such languages. We show how such applications can be tested automatically, without the need for any manually-written test cases, and efficiently, by taking advantage of their capability of taking unordered sets of events as inputs.