What is a Software Requirements Specification (SRS)?

Question

Accepted Answer

**SRS** — detailed document describing system requirements.

**Difference from BRD:**
- **BRD** — business level.
- **SRS** — technical level.

**Key sections:**
- Introduction and purpose.
- Overall description.
- Functional requirements.
- Non-functional requirements.
- External interfaces.
- Data requirements.

**IEEE 830 standard:**
```
1. Introduction
   1.1 Purpose
   1.2 Scope
2. Overall Description
3. Specific Requirements
   3.1 Functional
   3.2 Non-functional
4. Appendices
```

**Best practices:**
- Use clear, unambiguous language.
- Requirements should be testable.
- Version control.
- Traceability matrix.

Business Analyst: What is a Software Requirements Specification (SRS)?