## Software Requirements Document (SRD) %% aka Software Requirements Specification (SRS) %% A Software Requirements Document (SRD) is a comprehensive, structured document that lays out the functional and non-functional requirements of a software system, serving as a foundation for development; alternatives like User Stories are more agile, focusing on user experiences and can be less comprehensive but more flexible. SRD can also serve as a contract between the developer and the client and as a guide for the development of the Software Design Document (SDD). Here's a standard layout based on the IEEE Standards: 1. **Introduction:** - Purpose: Software goals and use cases 1. Scope: Software features and benefits 2. Definitions, acronyms, abbreviations 3. Reference documents 4. Overview: Describe the structure of the document. 2. **General Description (Product Documentation)** - Product perspective: - Systems interfaces 1. User interfaces 2. Hardware interfaces 3. Software interfaces 4. Communication interfaces 1. Memory constraints 2. Design constraints: - Operators 3. Site adaptation requirements 4. Product functions: Use cases 5. User characteristics 6. Constraints: - Regulations 7. Hardware 8. Assumptions and dependencies 3. **Specific System Requirements (System Documentation):** - External interface requirements 1. Functional requirements: - Back-end: Logic, data processing, APIs - Front-end: User Interface - Database 2. Hardware, software, and data constraints 3. Performance requirements 4. Logical database requirements 5. Software system attributes: - Reliability 1. Availability 2. Maintainability 3. Portability 4. Security 5. Accessibility 4. **Process Requirements (Process Documentation):** - Development Methodology 1. Standards 2. User Documentation (End-user and System Admin) conventions 3. Deployment timeline: Break up development into sprints; Track progress. 4. Maintenance schedule 5. **Appendices** 6. **Index**