User Requirements Specifications

Writing user requirements is the pivotal stage of the life cycle as mistakes made here are magnified during later stages of system development and implementation. Here are two articles on how to write user requirements.

• What Do You Mean - It Doesn't Work?
  The role of the SRS in the system life cycle: its importance and how to write requirements. This is an article from the Validation and Verification column of Scientific Data Management.
• User Requirements Specification
  Chapter 7 of Validation of Chromotography Data Systems: Meeting Business and Regulatory Requirements, Published by the Royal Society of Chemistry.