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Software Requirement Patterns


Software Requirement Patterns

Author: Stephen Withall

language: en

Publisher: Pearson Education

Release Date: 2007-06-13


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Learn proven, real-world techniques for specifying software requirements with this practical reference. It details 30 requirement “patterns” offering realistic examples for situation-specific guidance for building effective software requirements. Each pattern explains what a requirement needs to convey, offers potential questions to ask, points out potential pitfalls, suggests extra requirements, and other advice. This book also provides guidance on how to write other kinds of information that belong in a requirements specification, such as assumptions, a glossary, and document history and references, and how to structure a requirements specification. A disturbing proportion of computer systems are judged to be inadequate; many are not even delivered; more are late or over budget. Studies consistently show one of the single biggest causes is poorly defined requirements: not properly defining what a system is for and what it’s supposed to do. Even a modest contribution to improving requirements offers the prospect of saving businesses part of a large sum of wasted investment. This guide emphasizes this important requirement need—determining what a software system needs to do before spending time on development. Expertly written, this book details solutions that have worked in the past, with guidance for modifying patterns to fit individual needs—giving developers the valuable advice they need for building effective software requirements

Computers in Railways X


Computers in Railways X

Author: John J. Allan

language: en

Publisher: WIT Press

Release Date: 2006


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This book updates the use of computer-based techniques, promoting their general awareness throughout the business management, design, manufacture and operation of railways and other advanced passenger, freight and transit systems. Including papers from the Tenth International Conference on Computer System Design and Operation in the Railway and Other Transit Systems, the book will be of interest to railway management, consultants, railway engineers (including signal and control engineers), designers of advanced train control systems and computer specialists. Themes of interest include: Planning; Human Factors; Computer Techniques, Management and languages; Decision Support Systems; Systems Engineering; Electromagnetic Compatibility and Lightning; Reliability, Availability, Maintainability and Safety (RAMS); Freight; Advanced Train Control; Train Location; CCTV/Communications; Operations Quality; Timetables; Traffic Control; Global Navigation using Satellite Systems; Online Scheduling and Dispatching; Dynamics and Wheel/Rail Interface; Power Supply; Traction and Maglev; Obstacle Detection and Collision Analysis; Railway Security.

Computer Integrated Experimentation


Computer Integrated Experimentation

Author: Edward Magrab

language: en

Publisher: Springer Science & Business Media

Release Date: 2012-12-06


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This book provides a basis by which instruments and transducers can be selected, assembled and integrated with a computer to measure and control physical processes in an accurate and predictable manner. It consists of two parts, the first of which lays the theoretical foundation for the second. First the Fourier analysis of signals are summarized. Then, from a systems point of view, the following chapters introduce the important aspects of filters, amplifiers and analog-to-digital converters. The second half of the book first discusses in depth the importance of the timing of the computer with its instruments, transducers and actuators. It then summarizes the physical and functional aspects of transducers and actuators and gives numerous detailed examples of how they can be integrated into computer controlled experiments and processes.