Feature Documentation Template
An empty structure with comments instructing users how to write feature specs
Feature Specification: [Feature Name Here]
Feature Owner / Responsible Team: [Team or Person Name]
Feature Version: [e.g., v1.0]
Last Updated: [YYYY-MM-DD]
Feature Purpose
Briefly explain the primary goal of this feature. Why does it exist? What problem does it solve for the user or the business?
Example: "The Payment Revenue feature processes all incoming subscription payments, calculates revenue splits for creators, and handles payout scheduling."
Modules Involved:
List the core system modules that this feature touches (e.g., Billing Module, User Module, Notification Module).
Feature Description
Provide a detailed explanation of what the feature does in plain language. Imagine explaining it to a new Product Manager on their first day.
User Workflow
Provide a step-by-step explanation of how the end-user interacts with the feature. Start from how they discover or access the feature, through the core interaction, to the final outcome.
System Workflow
Explain what happens behind the scenes. Detail the sequence of events, state changes, job dispatching, or major internal technical steps.
UI Components
List and describe the user interface elements involved in this feature.
-
Screens involved:
-
Buttons:
-
Inputs:
- Validations:
- What client-side validation rules exist?
- User feedback behavior:
- How does the system communicate success, loading, or failure to the user?
Business Logic
List the critical business rules that govern this feature. These are constraints, calculation rules, or specific conditionals that the system must enforce.
- Rule 1:
- Rule 2:
Database / Data Structure
Describe the tables, collections, entities, or core data structures involved. You do not need to list every single column—just the primary tables and critical fields/relationships.
API Endpoints
List the main APIs used by this feature, including their purpose.
GET /api/...- Purpose
POST /api/...- Purpose
Error Handling
Describe the possible failure scenarios (both user errors and system errors) and how the system responds. What status codes are returned? What messages are shown to the user?
Feature Dependencies
Explain which other modules, features, or external services this feature relies upon. What happens to this feature if that dependency is down?
Testing Considerations
Explain how QA engineers should approach testing this feature.
- Core functionality: The "happy path" that must work.
- Edge cases: Unusual scenarios or boundary conditions to check.
- Validation rules: Specific data entry constraints to challenge.
Feature Lifecycle
Document the history and evolution of this feature over time.
Feature History
- v1.0 – Initial feature release.