---
id: {{id}}
title: {{title}}
type: prd
status: draft
priority: {{priority}}
created: {{timestamp}}
author: {{author}}
timeline: {{timeline}}
---

# PRD: {{title}}

## Executive Summary

Design and implement {{title}} - a {{component_type}} component for {{feature_purpose}}.

**Component Type**: {{component_type}}
**Target Platform**: {{platform}}

## Problem Statement

### Background
{{problem}}

### User Need
Users need to {{user_need}} in order to {{user_goal}}.

### Current Pain Points
{{#if pain_points}}
{{#each pain_points}}
- {{this}}
{{/each}}
{{/if}}

## User Stories (INVEST Criteria)

Following INVEST principles (Independent, Negotiable, Valuable, Estimable, Small, Testable):

- As a **{{user_role}}**, I want to **{{user_action}}** so that **{{user_benefit}}**

{{#if additional_stories}}
{{#each additional_stories}}
- As a **{{role}}**, I want to **{{action}}** so that **{{benefit}}**
{{/each}}
{{/if}}

## UI/UX Requirements

### Component Specifications
- **Type**: {{component_type}} (Page/Modal/Widget/Form/Dashboard)
- **Location**: {{component_location}}
- **Interaction Pattern**: {{interaction_pattern}}
- **Responsive Breakpoints**: Mobile (320px+), Tablet (768px+), Desktop (1024px+)

### Design Assets
- **Wireframes**: {{wireframe_link}} <!-- e.g. https://figma.com/file/xyz or /assets/wireframes/homepage.png -->
- **Mockups**: {{design_link}} <!-- e.g. https://invisionapp.com/mockup/abc or /assets/mockups/modal.jpg -->
- **Design System**: {{design_system}} <!-- e.g. https://company.com/design-system or /docs/design-system.md -->
- **Brand Guidelines**: {{brand_guidelines}} <!-- e.g. https://company.com/brand-guidelines.pdf or /assets/brand-guidelines.pdf -->

### Accessibility (WCAG 2.1 Level AA - 2025 Compliance)

#### Perceivable
- [ ] **Text Alternatives**: All non-text content has alt text
- [ ] **Color Contrast**: Minimum 4.5:1 ratio for normal text, 3:1 for large text
- [ ] **Resize Text**: Content readable at 200% zoom
- [ ] **Images of Text**: Avoided unless essential

#### Operable
- [ ] **Keyboard Accessible**: All functionality via keyboard (no mouse required)
- [ ] **Focus Indicators**: Visible focus states (outline, highlight)
- [ ] **No Keyboard Trap**: Focus can move away from component
- [ ] **Skip Links**: Skip to main content option
- [ ] **Tab Order**: Logical navigation flow

#### Understandable
- [ ] **Clear Labels**: Form inputs have associated labels
- [ ] **Error Identification**: Errors clearly described
- [ ] **Consistent Navigation**: UI patterns consistent across app
- [ ] **Predictable**: Components behave as expected

#### Robust
- [ ] **Valid HTML**: Semantic markup, no errors
- [ ] **ARIA Labels**: Proper ARIA attributes where needed
- [ ] **Screen Reader Testing**: NVDA, JAWS, VoiceOver compatible
- [ ] **Browser Compatibility**: Chrome, Firefox, Safari, Edge

### Responsive Design

**Mobile First Approach** (320px - 767px):
- [ ] Touch-friendly targets (min 44x44px)
- [ ] Single column layout
- [ ] Simplified navigation
- [ ] Optimized images

**Tablet** (768px - 1023px):
- [ ] Two column layout where appropriate
- [ ] Enhanced navigation
- [ ] Adaptive components

**Desktop** (1024px+):
- [ ] Multi-column layouts
- [ ] Full feature set
- [ ] Hover states
- [ ] Advanced interactions

## Technical Requirements

### Frontend Stack
- **Framework**: {{frontend_framework}} (React 18+/Vue 3+/Angular 17+)
- **State Management**: {{state_management}} (Redux/Zustand/Pinia/NgRx)
- **Styling**: {{styling_approach}} (CSS-in-JS/Sass/Tailwind/CSS Modules)
- **Build Tool**: {{build_tool}} (Vite/Webpack 5/Parcel)

### Component Architecture

```
{{component_name}}/
├── index.jsx/tsx           # Main component
├── styles.module.css       # Component styles
├── hooks/
│   ├── useComponentState.js
│   └── useComponentEffects.js
├── utils/
│   └── helpers.js
├── types/
│   └── index.ts            # TypeScript definitions
├── __tests__/
│   ├── index.test.jsx
│   ├── integration.test.jsx
│   └── a11y.test.jsx       # Accessibility tests
└── README.md
```

### API Integration
- **Endpoints**: {{api_endpoints}}
- **Loading States**:
  - Skeleton loaders for content
  - Spinners for actions
  - Progress indicators for long operations
- **Error Handling**:
  - Toast notifications
  - Inline error messages
  - Fallback UI components
- **Caching Strategy**: {{cache_strategy}}

### Performance Requirements

**Core Web Vitals (2025 Standards)**:
- [ ] **LCP (Largest Contentful Paint)**: < 2.5s
- [ ] **FID (First Input Delay)**: < 100ms
- [ ] **CLS (Cumulative Layout Shift)**: < 0.1
- [ ] **INP (Interaction to Next Paint)**: < 200ms
- [ ] **TTFB (Time to First Byte)**: < 600ms

**Bundle Size**:
- [ ] Component bundle: < 50KB (gzipped)
- [ ] Total page size: < 500KB (initial load)
- [ ] Code splitting implemented
- [ ] Lazy loading for routes

**Runtime Performance**:
- [ ] 60 FPS scrolling
- [ ] Smooth animations (requestAnimationFrame)
- [ ] Debounced inputs (300ms)
- [ ] Virtualized lists (for 100+ items)

**Lighthouse Scores (Mobile)**:
- Performance: > 90
- Accessibility: 100
- Best Practices: > 95
- SEO: > 90

## Testing Requirements (TDD Approach)

### Unit Tests (Jest/Vitest)
- [ ] Component rendering (all states)
- [ ] User interactions (click, input, submit)
- [ ] State management (updates, side effects)
- [ ] Edge cases (empty states, errors)
- [ ] Utility functions (pure logic)
- **Coverage Target**: 100% for new code

### Integration Tests
- [ ] API integration (success/error flows)
- [ ] Navigation flow (routing)
- [ ] Form submission (validation, submission)
- [ ] State persistence (localStorage/sessionStorage)

### Accessibility Tests
- [ ] axe-core automated testing
- [ ] Keyboard navigation testing
- [ ] Screen reader testing (NVDA, JAWS, VoiceOver)
- [ ] Color contrast validation
- [ ] ARIA attributes validation

### E2E Tests (Playwright/Cypress)
- [ ] User journey (complete flow)
- [ ] Cross-browser (Chrome, Firefox, Safari, Edge)
- [ ] Responsive design (mobile, tablet, desktop)
- [ ] Performance profiling
- [ ] Visual regression testing

### Visual Testing
- [ ] Chromatic/Percy visual regression
- [ ] Storybook component documentation
- [ ] Design system adherence

## Internationalization (i18n)

{{#if i18n_required}}
- [ ] Text externalized to language files
- [ ] RTL (Right-to-Left) support
- [ ] Date/time localization
- [ ] Number/currency formatting
- [ ] Pluralization rules
- **Languages**: {{supported_languages}}
{{/if}}

## Success Metrics (SMART Goals)

- **Usability**: {{usability_score}}/100 SUS (System Usability Scale) score
- **Adoption**: {{adoption_target}}% user engagement within {{adoption_timeframe}}
- **Performance**: {{lighthouse_target}}/100 Lighthouse score
- **Accessibility**: 100% WCAG 2.1 AA compliance
- **Error Rate**: < {{error_rate}}%
- **User Satisfaction**: {{nps_target}} NPS score

## User Feedback Collection

- [ ] Analytics integration (GA4/Mixpanel)
- [ ] Heatmap tracking (Hotjar/FullStory)
- [ ] User surveys (post-interaction)
- [ ] A/B testing framework
- [ ] Session replay analysis

## Implementation Plan

### Phase 1: Design & Setup (Week 1)
- [ ] UI/UX review and approval
- [ ] Component architecture design
- [ ] API contracts finalized
- [ ] Accessibility audit plan
- [ ] Development environment setup

### Phase 2: Development (Week 2-3)
- [ ] Write failing tests (TDD Red)
- [ ] Implement component logic (TDD Green)
- [ ] Apply styling and responsive design
- [ ] Accessibility implementation
- [ ] Code review and refactoring

### Phase 3: Testing (Week 4)
- [ ] Unit test completion (100% coverage)
- [ ] Integration testing
- [ ] Accessibility testing (manual + automated)
- [ ] Cross-browser testing
- [ ] Performance optimization
- [ ] Visual regression testing

### Phase 4: Release (Week 5)
- [ ] Staging deployment
- [ ] QA validation
- [ ] Usability testing
- [ ] Documentation finalization
- [ ] Production deployment
- [ ] Monitoring setup
- [ ] User feedback collection

## Browser & Device Support

### Desktop Browsers
- Chrome (latest 2 versions)
- Firefox (latest 2 versions)
- Safari (latest 2 versions)
- Edge (latest 2 versions)

### Mobile Browsers
- iOS Safari (latest 2 versions)
- Chrome Mobile (latest version)
- Samsung Internet (latest version)

### Device Testing
- [ ] iPhone (12, 13, 14, 15)
- [ ] iPad (9th gen, Pro)
- [ ] Android phones (Samsung, Pixel)
- [ ] Desktop (1920x1080, 2560x1440)

## Monitoring & Analytics

### Performance Monitoring
- Real User Monitoring (RUM)
- Core Web Vitals tracking
- Error tracking (Sentry/Rollbar)
- Bundle size monitoring

### User Analytics
- User flow tracking
- Feature usage metrics
- Conversion funnels
- Drop-off points

### Alerts
- Performance degradation (LCP > 3s)
- Error rate spike (> {{error_threshold}}%)
- Accessibility violations
- Browser compatibility issues

## Rollback Plan

### Rollback Triggers
- Accessibility compliance failure
- Critical UI bug affecting {{user_percentage}}% users
- Performance degradation > {{perf_degradation}}%
- Cross-browser compatibility issues

### Rollback Procedure
1. Feature flag toggle (immediate disable)
2. Revert deployment to previous version
3. Notify affected users
4. Root cause analysis
5. Fix and re-deploy

## Risks and Mitigation

### Technical Risks
| Risk | Impact | Probability | Mitigation |
|------|--------|-------------|------------|
| Browser compatibility issues | High | Medium | Cross-browser testing early |
| Performance degradation | High | Low | Performance budgets, monitoring |
| Accessibility violations | Critical | Low | Automated + manual testing |

### UX Risks
| Risk | Impact | Probability | Mitigation |
|------|--------|-------------|------------|
| Poor usability | High | Medium | User testing, feedback loops |
| Confusing navigation | Medium | Medium | A/B testing, analytics |

## Open Questions

- [ ] {{question_1}}
- [ ] {{question_2}}
- [ ] {{question_3}}

## Appendix

### Design Resources
- Design system: {{design_system_link}}
- Component library: {{component_library_link}}
- Icon library: {{icon_library}}

### References
- [WCAG 2.1 Guidelines](https://www.w3.org/TR/WCAG21/)
- [Web Vitals](https://web.dev/vitals/)
- [Accessibility Testing Guide](https://www.w3.org/WAI/test-evaluate/)
- [React Best Practices 2025](https://react.dev/learn)

### Changelog
- {{timestamp}}: Initial PRD created by {{author}}

---

*UI Feature PRD - Generated from template: ui-feature*
*Template follows 2025 best practices: WCAG 2.1 AA compliance, Core Web Vitals, TDD methodology, Mobile-first design*
