Vision → User Personas → User Stories → Features → 
Technical Requirements → Success Metrics → Timeline

# [App Name] - Product Requirements Document

**Version:** 1.0
**Last Updated:** [Date]
**Author:** [Name]
**Status:** Draft | Review | Approved

---

## 1. Product Vision

### 1.1 Executive Summary
[2-3 sentence description of the app and its purpose]

### 1.2 Problem Statement
**The problem of** [describe the problem]
**affects** [target users]
**the impact of which is** [consequences]
**A successful solution would** [key benefits]

### 1.3 Product Vision Statement
**For** [target customer]
**Who** [statement of need]
**The** [product name] is a [product category]
**That** [key benefit, reason to buy]
**Unlike** [primary competitive alternative]
**Our product** [primary differentiation]

### 1.4 Goals & Success Metrics

| Goal | Metric | Target |
|------|--------|--------|
| User Acquisition | DAU/MAU | X users in 6 months |
| Engagement | Session duration | X minutes avg |
| Retention | D7 retention | X% |
| Revenue | MRR | $X in 12 months |

## 2. Target Users

### 2.1 Primary Persona: [Name]

**Demographics:**
- Age: X-X years old
- Occupation: [Job title/field]
- Tech proficiency: Low | Medium | High

**Goals:**
- [Primary goal]
- [Secondary goal]

**Pain Points:**
- [Frustration 1]
- [Frustration 2]

**Behavior:**
- Uses apps for [purpose]
- Willing to pay for [value]

**Quote:** "[A statement capturing their mindset]"

### 2.2 Secondary Persona: [Name]
[Same structure as above]

## 3. Features & User Stories

### 3.1 Epic: [Epic Name]

#### User Story 3.1.1
**As a** [user type]
**I want** [action/feature]
**So that** [benefit/value]

**Acceptance Criteria:**
- [ ] Given [context], when [action], then [result]
- [ ] Given [context], when [action], then [result]
- [ ] Error state: [description]

**Priority:** P0 (Must have) | P1 (Should have) | P2 (Nice to have)
**Effort:** S | M | L | XL
**Dependencies:** [List any dependencies]

---

#### User Story 3.1.2
[Same structure]

## 4. Detailed Feature Specifications

### 4.1 [Feature Name]

**Description:**
[Detailed description of the feature]

**User Flow:**
1. User opens app
2. User taps [button]
3. System displays [screen]
4. User enters [data]
5. System [action]
6. User sees [result]

**UI Requirements:**
- Screen: [Name]
- Components: [List of UI elements]
- Interactions: [Gestures, animations]

**Data Requirements:**
- Input: [Data fields]
- Output: [Expected results]
- Storage: Local | Cloud | Both

**Edge Cases:**
- Empty state: [Description]
- Error state: [Description]
- Offline: [Behavior]

**Mockup Reference:** [Link or file name]

## 5. Technical Requirements

### 5.1 Platform Requirements
- iOS Version: iOS [X]+ 
- Devices: iPhone / iPad / Universal
- Orientations: Portrait / Landscape / Both

### 5.2 Architecture
- Pattern: MVVM / TCA / Clean Architecture
- UI Framework: SwiftUI / UIKit / Hybrid
- State Management: [Approach]

### 5.3 Dependencies
| Library | Purpose | Version |
|---------|---------|---------|
| [Name] | [Use case] | [Version] |

### 5.4 Backend Requirements
- [ ] User authentication
- [ ] Cloud sync
- [ ] Push notifications
- [ ] Analytics
- [ ] Crash reporting

**API Endpoints (if applicable):**
| Endpoint | Method | Purpose |
|----------|--------|---------|
| /api/v1/users | GET | Fetch user data |

### 5.5 Data Model
```swift
struct User {
    let id: UUID
    var name: String
    var email: String
    var createdAt: Date
}

struct [ModelName] {
    // Properties
}

### 6. Design Requirements

```markdown
## 6. Design Requirements

### 6.1 Design System
- Colors: [Primary, Secondary, Accent]
- Typography: SF Pro / Custom
- Icons: SF Symbols / Custom
- Spacing: [System]

### 6.2 Accessibility
- [ ] VoiceOver support
- [ ] Dynamic Type support
- [ ] Color contrast compliance
- [ ] Reduce Motion support

### 6.3 Localization
- Languages: [List]
- RTL support: Yes / No

### 6.4 Screen List
| Screen | Description | Priority |
|--------|-------------|----------|
| Onboarding | First-time user flow | P0 |
| Home | Main dashboard | P0 |
| [Screen] | [Description] | [Priority] |

## 7. Release Plan

### 7.1 MVP Scope (v1.0)
**Target Date:** [Date]

**Included Features:**
- [Feature 1] - P0
- [Feature 2] - P0
- [Feature 3] - P0

**Excluded from MVP:**
- [Feature] - Reason: [Why deferred]

### 7.2 Future Releases

**v1.1 - [Theme]**
- [Feature]
- [Feature]

**v2.0 - [Theme]**
- [Feature]
- [Feature]

### 7.3 Timeline
| Phase | Duration | Deliverable |
|-------|----------|-------------|
| Design | 2 weeks | Figma mockups |
| Development | 6 weeks | Working app |
| Testing | 2 weeks | Bug-free build |
| App Review | 1 week | Approved app |
| **Total** | 11 weeks | App Store launch |

## 8. Appendix

### 8.1 Glossary
| Term | Definition |
|------|------------|
| [Term] | [Definition] |

### 8.2 References
- Competitor Analysis: [Link]
- Market Research: [Link]
- Design Files: [Link]

### 8.3 Open Questions
- [ ] [Question that needs resolution]
- [ ] [Question that needs resolution]

### 8.4 Change Log
| Date | Version | Author | Changes |
|------|---------|--------|---------|
| [Date] | 1.0 | [Name] | Initial draft |

**As a** new user
**I want** to create an account
**So that** I can save my data and access it across devices

**Acceptance Criteria:**
- [ ] User can sign up with email/password
- [ ] User can sign up with Apple ID
- [ ] Password must be 8+ characters
- [ ] Email verification required
- [ ] Error shown for existing email

**As a** [user type]
**I want** to [action]
**So that** [benefit]

**Acceptance Criteria:**
- [ ] [Specific testable criterion]
- [ ] [Specific testable criterion]
- [ ] [Edge case handling]