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Strategies for Real-Time System Specification by Imtiaz A. Pirbhai, Derek J. Hatley

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Chapter 11. Getting Started

In this chapter, we expand on the first four steps of the model building process that was presented in the previous chapter. Specifically, we will look at procedures for analyzing customer requirements, making the initial separation between data and control, establishing the system context, and partitioning the top levels.

11.1 User Requirements Statements

There is nothing standard about the form in which you, as the model builder, might receive a requirements statement from the customer or user. Some very large and costly systems have been developed from the briefest and vaguest of statements from the user. Other users, on the other hand, have a very detailed idea of what they need, and may provide you with a lengthy ...

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