Includes bibliographical references and index.

Motivation -- Requirements -- Continuous requirements engineering -- The requirements engineering framework -- System and context boundaries -- Structuring the system context -- Fundamentals of goal orientation -- Documenting goals -- Fundamentals of scenarios -- Scenario types -- Documenting scenarios -- Benefits of using goals and scenarios -- Fundamentals -- Documenting solution-oriented requirements -- Integration of the three perspectives -- Fundamentals of requirements documentation -- Natural language documentation -- Structuring natural language requirements -- Fundamentals of conceptual modeling -- Interrelation of model-based and textual requirements -- Fundamentals of requirements elicitation -- Elicitation techniques -- Assistance techniques for elicitation -- Fundamentals of requirements negotiation -- Conflict management -- Negotiation techniques -- Fundamentals of requirements validation -- Validation techniques -- Assistance techniques for validation -- Fundamentals of requirements management -- Requirements traceability -- Prioritising requirements -- Change management for requirements -- Fundamentals -- The COSMOD-RE method -- Applying COSMOD-RE : an example -- Requirements engineering for software product lines -- Requirements-based testing : the ScenTED approach -- Appendix -- Glossary.