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Structured Development for Real-Time Systems by Paul T. Ward, Stephen J. Mellor

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Chapter 11. Sizing, Efficiency, and Optimization

Introduction

We stated in the first chapter of Volume 1 that real-time system development need no longer be implementation-dominated, but instead should be driven by the problem to be solved. Implicit in this statement is the idea that implementation resources are available in sufficient quantities and at low enough prices to allow an implementation to be built with relatively low distortion of the problem. Most real-time systems have stringent timing constraints that must be met for the system to be effective; but we have asserted that often the order of the expected resources required is less than the order of the resources available so that we may indeed focus mainly on the problem to be solved. ...

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