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 ...

Simulating real world applications containing many functionalities using programs tend to become very complex in structure and behaviour. Validating such programs for its correctness require correct ...

The inoperative elevators are a symptom of larger problems the City-County Building has with its mechanical systems and ...