Strategies for Real-Time System Specification

Strategies for Real-Time System Specification

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

This is the digital version of the printed book (Copyright © 1987).

Here is a casebook, a practical reference, and an indispensable guide for creating a systematic, formal methodology for large, real-time, software-based systems.


The book introduces the widely implemented Hatley/Pirbhai methods, a major extension of the DeMarco analysis method describing how external events control the system's operating behavior. The techniques are used in major avionics and electronics companies worldwide, and are automated by most major CASE tools, including TurboCASE/Sys by StructSoft, Inc.


Large software-based systems, especially those for real-time applications, require multi-mode operation, direct interaction with a rapidly changing physical environment, and fast response times. In the past, the development of such systems was prone to massive cost and schedule overruns, and to inadequate performance and reliability. Strategies for Real-Time System Specification addresses these problems by integrating a finite-state machine structure into classical analysis methods.


The book contains nearly 200 diagrams, many of which illustrate the requirements specification of a flight management system for a major avionics developer.


Product Details

ISBN-13: 9780133492354
Publisher: Pearson Education
Publication date: 07/19/2013
Series: Dorset House eBooks
Sold by: Barnes & Noble
Format: NOOK Book
Pages: 440
File size: 25 MB
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About the Author

Derek J. Hatley previously was president of System Strategies, an international consulting and training firm based in Jenison, Michigan. Prior to founding System Strategies, he was a Staff Engineer at Smiths Industries, Avionic Systems Division, where he was responsible for systems and software development techniques. He developed the requirements model, managed its first major application, developed an instructional workshop to be given internally and to customers and suppliers, and has presented technical papers at numerous international professional conferences. An avid music lover for most of his life, he now spends part of his time writing and arranging music.


Imtiaz A. Pirbhai was a principal of Systems Methods in Seattle, Washington, specializing in real-time and general systems development training. He previously was responsible for the development of structured methods standards and procedures at the Boeing Commercial Airplane Co. He taught and consulted internationally, introducing the methods described in Strategies for Real-Time System Specification throughout the world. At the time of his death in August of 1992, he had begun work on Process for System Architecture and Requirements Engineering (Dorset House, 2000), coauthored with Derek Hatley and Peter Hruschka.

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