In this paper, we present the formal semantics of sequence diagrams. The semantics of a sequence diagram is interpreted as a consecutive execution of steps in UTP. The semantics clearly captures the ...

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Testing is an important area of software engineering. There are various types of testing methodologies followed in various stages of Software Development Life Cycle (SDLC). We are proposed a novel ...

UML sequence diagrams show the way various actors and objects interact and the events they generate, arranged in a time sequence. Popular beyond the design community, these diagrams are good at ...