Requirements Engineering

Requirements engineering is the process of discovering, documenting and managing the requirements for a computer-based system. The goal of requirements engineering is to produce a set of system requirements which, as far as possible, is complete, consistent, relevant and reflects what the customer actually wants. Although this ideal is probably unattainable, the use of a systematic approach based on engineering principles leads to better requirements than the informal approach which is still commonly used. This book presents a set of guidelines which reflect the best practice in requirements engineering. Based on the authors' experience in research and in software and systems development, these guidelines explain in an easy-to-understand way how you can improve your requirements engineering processes. The guidelines are applicable for any type of application and, in general, apply to both systems and software engineering. The guidelines here range from simple 'common sense' to those which propose the introduction of complex new methods. The guidelines and process improvement schemes have been organised so that you can pick and choose according to your problems, goals and available budget. There are few dependencies between guidelines so you can introduce them in any order in your organisation. Guidelines presented in the book
* are consistent with ISO 9000 and CMM
* are ranked with cost/benefit analysis
* give implementation advice
* can be combined and applied to suit your organisation's needs
* are supported by a web page pointing to RE tools and resourcesZwei beliebte Autoren des Software-Engineerings stellen diese Seite des Gebietes in einer praxisnahen FAQ-Form (Fragen und Antworten) vor. Sie legen dar, wie die Anforderungen an eine Software (Pflichtenheft) den Vorstellungen der Nutzer entsprechen sollte.

Preface vii

1 Introduction 1

2 Practical Process Improvement 15

3 The Requirements Document 37

4 Requirements Elicitation 63

5 Requirements Analysis and Negotiation 111

6 Describing Requirements 141

7 System Modelling 161

8 Requirements Validation 189

9 Requirements Management 215

10 Requirements Engineering for Critical Systems 255

11 System Modelling with Structured Methods 299

12 Formal Specification 331

13 Viewpoints 359

Index 389

Aus dem Inhalt:
Introduction;
GOOD PRACTICE GUIDELINES: The Requirements Document;
Required Elicitation;
Requirements Analysis and Negotiation;
Describing Requirements;
System Modelling;
Requirements Validation;
Requirements Management and Evolution;
Requirements Engineering for Critical Systems;
REQUIREMENTS ENGINEERING TECHNIQUES: Formal Methods;
Structured Methods and System Modelling;
Viewpoints for Requirements Engineering;
Domain Knowledge and Reuse;
Human, Social and Organisational Factors

Ian F. Sommerville, is a British academic. He is the author of a popular student textbook on software engineering, as well as a number of other books and papers. Pete Sawyer is the author of Requirements Engineering: A Good Practice Guide, published by Wiley. "A marvellous book.a unique focus on what practising engineers need to do." Watts Humphrey, Software Engineering Institute, USA Requirements Engineering A good practice guide Find more RE resources at this web support site http://www.comp.lancs.ac.uk/computing/resources/re-gpg/ Visit our Web page! http://www.wiley.com/ compbooks/ Requirements engineering is the process of discovering, documenting and managing the requirements for a computer-based system. The goal of requirements engineering is to produce a set of system requirements which, as far as possible, is complete, consistent, relevant and reflects what the customer actually wants. Although this ideal is probably unattainable, the use of a systematic approach based on engineering principles leads to better requirements than the informal approach which is still commonly used. This book presents a set of guidelines which reflect the best practice in requirements engineering. Based on the authors' experience in research and in software and systems development, these guidelines explain in an easy-to-understand way how you can improve your requirements engineering processes. The guidelines are applicable for any type of application and, in general, apply to both systems and software engineering. The guidelines here range from simple 'common sense' to those which propose the introduction of complex new methods. The guidelines and process improvement schemes have been organised so that you can pick and choose according to your problems, goals and available budget. There are few dependencies between guidelines so you can introduce them in any order in your organisation. Guidelines presented in the book
* are consistent with ISO 9000 and CMM
* are ranked with cost/benefit analysis
* give implementation advice
* can be combined and applied to suit your organisation's needs
* are supported by a web page pointing to RE tools and resources