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Structured Development for Real-Time Systems, Volume 2: Essential Modeling Techniques by Stephen J. Mellor, Paul T. Ward

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4 Deriving the Behavioral Model

4.1 Introduction

The context schema and its associated specifics, together with the external event list and the environmental data schema, if one is built, constitute a detailed model of a system’s environment. Clearly this model does not contain all the details necessary to build a detailed description of the system’s behavior. Nevertheless, the environmental model provides a basis for constructing the behavioral model, and in this chapter we lay out the guidelines for doing so.

4.2 An Informal High-Level Requirements Model

Our task in building the behavioral model is very simple: We must describe the response made by the system to each event in the external event list. A very direct way of approaching this ...

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