# {{project_name}} Brownfield Enhancement PRD

## Intro Project Analysis and Context

### Existing Project Overview

#### Analysis Source
{{analysis_source}}

#### Current Project State
{{current_project_state}}

#### Available Documentation
{{available_documentation}}

### Enhancement Scope Definition

#### Enhancement Type
{{enhancement_type}}

#### Enhancement Description
{{enhancement_description}}

#### Impact Assessment
{{impact_assessment}}

## Goals and Background Context

### Enhancement Goals
- {{enhancement_goal_1}}
- {{enhancement_goal_2}}
- {{enhancement_goal_3}}

### Background Context
{{background_context}}

### Success Criteria
{{success_criteria}}

### Change Log
| Date | Version | Description | Author |
|------|---------|-------------|---------|
| {{date}} | {{version}} | {{description}} | {{author}} |

## Existing System Analysis

### Current Architecture
{{current_architecture}}

### Technology Stack
{{current_technology_stack}}

### Integration Points
{{current_integration_points}}

### Technical Debt
{{technical_debt_assessment}}

### Performance Baseline
{{performance_baseline}}

## Enhancement Requirements

### Functional Requirements
1. **FR1:** {{functional_requirement_1}}
2. **FR2:** {{functional_requirement_2}}
3. **FR3:** {{functional_requirement_3}}

### Non-Functional Requirements
1. **NFR1:** {{non_functional_requirement_1}}
2. **NFR2:** {{non_functional_requirement_2}}
3. **NFR3:** {{non_functional_requirement_3}}

### Integration Requirements
- {{integration_requirement_1}}
- {{integration_requirement_2}}
- {{integration_requirement_3}}

## Compatibility and Migration Strategy

### Backward Compatibility
{{backward_compatibility_requirements}}

### Migration Plan
{{migration_strategy}}

### Rollback Strategy
{{rollback_plan}}

### Data Migration
{{data_migration_requirements}}

## Risk Assessment

### Technical Risks
- **{{risk_1}}:** {{risk_1_description}} - _Mitigation:_ {{risk_1_mitigation}}
- **{{risk_2}}:** {{risk_2_description}} - _Mitigation:_ {{risk_2_mitigation}}
- **{{risk_3}}:** {{risk_3_description}} - _Mitigation:_ {{risk_3_mitigation}}

### Business Risks
- {{business_risk_1}}
- {{business_risk_2}}

### User Impact Risks
- {{user_impact_risk_1}}
- {{user_impact_risk_2}}

## Testing Strategy for Brownfield

### Regression Testing
{{regression_testing_approach}}

### Integration Testing
{{integration_testing_requirements}}

### User Acceptance Testing
{{user_acceptance_testing_plan}}

## Epic List

### Epic 1: {{epic_1_title}}
{{epic_1_goal}}

### Epic 2: {{epic_2_title}}
{{epic_2_goal}}

### Epic 3: {{epic_3_title}}
{{epic_3_goal}}

## Epic Details

### Epic 1: {{epic_1_title}}

{{epic_1_expanded_goal}}

#### Story 1.1: {{story_1_1_title}}
**As a** {{user_type}},
**I want** {{action}},
**So that** {{benefit}}.

**Acceptance Criteria:**
1. {{acceptance_criteria_1_1_1}}
2. {{acceptance_criteria_1_1_2}}
3. {{acceptance_criteria_1_1_3}}

**Compatibility Considerations:**
{{story_1_1_compatibility}}

#### Story 1.2: {{story_1_2_title}}
**As a** {{user_type}},
**I want** {{action}},
**So that** {{benefit}}.

**Acceptance Criteria:**
1. {{acceptance_criteria_1_2_1}}
2. {{acceptance_criteria_1_2_2}}
3. {{acceptance_criteria_1_2_3}}

**Compatibility Considerations:**
{{story_1_2_compatibility}}

### Epic 2: {{epic_2_title}}

{{epic_2_expanded_goal}}

#### Story 2.1: {{story_2_1_title}}
**As a** {{user_type}},
**I want** {{action}},
**So that** {{benefit}}.

**Acceptance Criteria:**
1. {{acceptance_criteria_2_1_1}}
2. {{acceptance_criteria_2_1_2}}
3. {{acceptance_criteria_2_1_3}}

**Compatibility Considerations:**
{{story_2_1_compatibility}}

#### Story 2.2: {{story_2_2_title}}
**As a** {{user_type}},
**I want** {{action}},
**So that** {{benefit}}.

**Acceptance Criteria:**
1. {{acceptance_criteria_2_2_1}}
2. {{acceptance_criteria_2_2_2}}
3. {{acceptance_criteria_2_2_3}}

**Compatibility Considerations:**
{{story_2_2_compatibility}}

## Next Steps

### Architecture Review
{{architecture_review_prompt}}

### UX Enhancement Review
{{ux_review_prompt}}

### Implementation Planning
{{implementation_planning_notes}}