The challenges and opportunities inherent in the expanding role of software and in Agile development have caused an evolution in our understanding of requirements development (RD). The purpose of this book is to share new RD perspectives and pragmatic techniques based on this evolving understanding.The book provides new perspectives on the goals and strategies of RD as well as the nature of requirements information and understanding. It describes the limitations of uniform approaches to requirements (e.g., Waterfall or Agile) and provides rationale and details so that you can use these new perspectives in your RD activities.Current RD books thoroughly cover the tasks, techniques, and tools of requirements elicitation, analysis, specification, and validation. While this information is valuable in dealing with many situations, these books omit or contain inadequate information about: Stakeholder understanding Demonstrations of developer understanding Quality attributes Supporting and conflicting relationships Goal definitions Achievement strategies Verification strategies Mixed requirements strategies Requ