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Focusing Real-Time Systems Analysis on User Operations
September/October 1988 (vol. 5 no. 5)
pp. 39-50

A way is presented to model and validate complex, real-time systems by describing these systems from the viewpoints of the major parties in system development: the customer, the user, and the implementer. The models representing these points of view are called, respectively, the requirements model, the operations-concept model, and the implementation model. The focus is on how the concept of operations can be formally factored into established real-time system-analysis methods in terms a nontechnical user can understand. The approach integrates and refines several real-time-oriented modeling methods, including structured analysis, finite-state machines, and threads. Modeling needs are discussed, the multiview paradigm is presented, and an extensive example of a bottle-filling system is given to illustrate the use of the method.

Index Terms:
real-time systems analysis; user operations; system development; requirements model; operations-concept model; implementation model; system-analysis; structured analysis; finite-state machines; threads; multiview paradigm; bottle-filling system; finite automata; real-time systems; systems analysis
Michael S. Deutsch, "Focusing Real-Time Systems Analysis on User Operations," IEEE Software, vol. 5, no. 5, pp. 39-50, Sept.-Oct. 1988, doi:10.1109/52.7942
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