Requirements List Template
Use this template to document the functional, data, behavioral, integration, UI, and non-functional requirements for a product feature before implementation begins.
See Requirements Best Practices for guidance on writing high-quality requirements.
Overview
Section titled “Overview”Feature Summary
Section titled “Feature Summary”Brief description of the feature being specified. What problem does it solve? What value does it provide to the user or system?
Define the boundaries of this requirements list. What is included and what is explicitly excluded?
Target Users/Personas
Section titled “Target Users/Personas”List the primary users or system actors that will interact with this feature.
- Persona 1: Description
- Persona 2: Description
Related Documents
Section titled “Related Documents”- Link to Parent Specification
- Link to Design Document
- Link to API Documentation
Domain Modeling
Section titled “Domain Modeling”Provide a high-level conceptual view of the domain before diving into detailed requirements. This section establishes the vocabulary and relationships referenced throughout the document.
Domain Concepts
Section titled “Domain Concepts”| Concept | Definition | Related Arda Entity |
|---|---|---|
| Concept 1 | Brief definition in business terms | EntityName or “New” |
| Concept 2 | Brief definition in business terms | EntityName or “New” |
Conceptual Model
Section titled “Conceptual Model”Provide an analysis-level PlantUML class diagram showing the relationships between domain concepts. This is NOT an implementation diagram — it represents the business domain, not code structure.
Relationship Descriptions
Section titled “Relationship Descriptions”| From | Relationship | To | Cardinality | Description |
|---|---|---|---|---|
Concept1 | verb phrase | Concept2 | 1:N | Business meaning |
Key Business Rules
Section titled “Key Business Rules”- Business Rule 1
- Business Rule 2
Functional Requirements
Section titled “Functional Requirements”Each requirement should be atomic, testable, and traceable. Use the format FR-<FeatureCode>-<Number> for identifiers.
FR-XXX-001: Requirement Title
Section titled “FR-XXX-001: Requirement Title”- Priority: Must Have | Should Have | Could Have | Won’t Have
- Status: Proposed | Approved | Implemented | Verified
- Description: Clear, concise statement of what the system shall do.
- Rationale: Why this requirement exists and its business value.
- Acceptance Criteria:
- Measurable criterion 1
- Measurable criterion 2
- Dependencies: List any requirements this depends on.
- Notes: Additional context, edge cases, or implementation hints.
Data Requirements
Section titled “Data Requirements”Use DR-<FeatureCode>-<Number> identifiers.
DR-XXX-001: Data Requirement Title
Section titled “DR-XXX-001: Data Requirement Title”- Entity/Field:
EntityName.fieldName - Constraint Type: Validation | Cardinality | Integrity | Format
- Description: What constraint or behavior applies.
- Validation Rules:
- Rule 1
- Error Behavior: What happens when validation fails? Reference
AppErrorsubclass.
Behavioral Requirements
Section titled “Behavioral Requirements”Document state transitions, lifecycle events, and system behaviors. Use BR-<FeatureCode>-<Number> identifiers.
BR-XXX-001: Behavior Title
Section titled “BR-XXX-001: Behavior Title”- Trigger: What event or action initiates this behavior?
- Pre-conditions: What must be true before this behavior can execute?
- Description: Detailed description of the behavior.
- Post-conditions: What is guaranteed to be true after successful execution?
- Side Effects: What other entities or systems are affected?
- Error Scenarios:
| Condition | Error Type | Error Message/Code |
|---|---|---|
| Condition 1 | AppError.Type | Message |
Integration Requirements
Section titled “Integration Requirements”Use IR-<FeatureCode>-<Number> identifiers.
IR-XXX-001: Integration Title
Section titled “IR-XXX-001: Integration Title”- Integration Type: API | Event | Webhook | File
- Direction: Inbound | Outbound | Bidirectional
- Description: What integration is required?
- Contract: Link to API spec, event schema, or file format.
- Error Handling: How integration failures are handled.
User Interface Requirements
Section titled “User Interface Requirements”Use UIR-<FeatureCode>-<Number> identifiers.
UIR-XXX-001: UI Requirement Title
Section titled “UIR-XXX-001: UI Requirement Title”- View Type: List | Detail | Form | Lookup | Action
- Description: What the user sees or can do.
- Contents: What data elements are displayed?
- Actions:
- Action 1: Description
- Validation/Feedback: User-visible validation messages or feedback.
Non-Functional Requirements
Section titled “Non-Functional Requirements”Use NFR-<FeatureCode>-<Number> identifiers.
NFR-XXX-001: Non-Functional Requirement Title
Section titled “NFR-XXX-001: Non-Functional Requirement Title”- Category: Performance | Security | Reliability | Usability | Scalability
- Description: Clear statement of the quality attribute.
- Metric: How this requirement is measured.
- Target: Quantitative target value.
Requirements Summary
Section titled “Requirements Summary”All Requirements Index
Section titled “All Requirements Index”| ID | Category | Title | Priority | Status |
|---|---|---|---|---|
| FR-XXX-001 | Functional | Title | Priority | Status |
| DR-XXX-001 | Data | Title | Priority | Status |
| BR-XXX-001 | Behavioral | Title | Priority | Status |
| IR-XXX-001 | Integration | Title | Priority | Status |
| UIR-XXX-001 | User Interface | Title | Priority | Status |
| NFR-XXX-001 | Non-Functional | Title | Priority | Status |
Open Questions
Section titled “Open Questions”| ID | Question | Owner | Status | Resolution |
|---|---|---|---|---|
| Q-001 | Question text | Person | Open/Resolved | Answer when resolved |
Revision History
Section titled “Revision History”| Version | Date | Author | Changes |
|---|---|---|---|
| 1.0.0 | YYYY-MM-DD | Author | Initial draft |
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