Average Reviews:
(More customer reviews)I have seen many a new textbook come to the market advancing the use of a new and novel approach to specifying system and/or software requirements. All too often these approaches breakdown when you try to implement them because not all of the details have been worked out. As a direct consequence, users of the methodology experience considerable pain because they have to mature the methodology and address the details as they try to develop their requirements specifications.
In contrast, this book provides its readers with a tried and true approach to systems/software requirements specification and analysis. The book steps you through the Embedded Computer Systems Analysis and Modeling (ECSAM) method. It shows you how to use the methodology to develop static and dynamic models of the system using an end-to-end example. The book emphasizes how to capture the functional, interface and performance requirements by overlaying the static with dynamic models and by verifying the results via analysis as they are generated. In addition, the book takes operational considerations into account as the evolving specification is developed and tested for completeness and consistency. The book also shows you how to decompose the system requirements to the subsystem level and test for correctness. Results are easy to understand because the methodology uses familiar graphical representations that adhere to well-defined semantics and strict modeling rules (functional flow diagrams, state charts, etc.) to portray its outputs. Most importantly, the book provides the reader with insights into what to look for and what not. This is what I find missing in most of the newer and more revolutionary works on the topic.
The ECSAM methodology seems applicable to many classes of systems which are driven by performance and operational considerations. The book is extremely useful for those who want to use a methodology that permits them to develop a robust and consistent set of requirements for a system or subsystem.
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Discover ECSAM, a method for requirements engineering and the modeling of computer-based systems (CBS).Practiced since 1980 in evolving versions by systems and software engineers, ECSAM was developed in part at Israel Aircraft Industries for the analysis and design of complex reactive embedded systems and software and has been presented in numerous undergraduate, graduate, and industrial courses.The method guides engineers in modeling operational, functional, and design requirements, considering both static and dynamic aspects of systems. With an end-to-end example of the method, developed throughout the book, readers learn how to * develop conceptual models of the structural and operational properties of computer-based systems and their software* develop systematically operational scenarios and use cases describing the interaction of the system with its environment * elicit and specify functional and nonfunctional requirements * allocate requirements to components of a conceptual model and use the model for the refinement and derivation of requirements* understand the issues of mapping the conceptual model to the design modelCore audiences include those involved in the development of complex or mission-critical computer-based systems and their software, systems engineers, computer-based-systems engineers, software engineers, engineering managers, and students at undergraduate and graduate levels.
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