Skip to content

PRODUCT_REQUIREMENTS_DOCUMENT.md

Latest commit

 

History

History
833 lines (655 loc) · 26 KB

PRODUCT_REQUIREMENTS_DOCUMENT.md

File metadata and controls

833 lines (655 loc) · 26 KB

Product Requirements Document (PRD)

Unchained Storefront Template

Version: 1.0
Date: July 2025
Document Owner: Product Team
Status: Active

Table of Contents

  1. Executive Summary
  2. Product Overview
  3. Problem Statement
  4. Goals & Objectives
  5. Target Audience
  6. Core Features & Requirements
  7. User Stories & Workflows
  8. Technical Requirements
  9. Design & User Experience
  10. Integration Requirements
  11. Success Metrics
  12. Implementation Timeline
  13. Risk Assessment
  14. Appendices

Executive Summary

The Unchained Storefront Template is a modern, full-featured e-commerce solution built on Next.js that integrates seamlessly with the Unchained Engine backend. This template provides businesses with a production-ready, customizable storefront that supports multiple payment methods, languages, and advanced e-commerce features while maintaining excellent performance and user experience.

Key Value Propositions

  • Ready-to-deploy e-commerce solution with enterprise-grade features
  • Multi-language and multi-currency support for global markets
  • Modern tech stack (Next.js 15, React 18, TypeScript, Tailwind CSS v4)
  • Flexible payment integrations (Stripe, Datatrans, Cryptocurrency)
  • Advanced authentication including WebAuthn and guest checkout
  • Responsive design with dark mode support
  • Developer-friendly with comprehensive tooling and documentation

Product Overview

Product Name

Unchained Storefront Template

Product Type

E-commerce frontend application template

Current Version

0.1.0 (Development)

Target Market

  • E-commerce businesses seeking modern, scalable storefronts
  • Development agencies building client e-commerce solutions
  • Enterprises requiring customizable e-commerce platforms
  • International businesses needing multi-language support

Problem Statement

Current Challenges in E-commerce Development

  1. Time-to-Market Pressure

    • Custom e-commerce development takes 3-6 months
    • Businesses lose competitive advantage due to lengthy development cycles
    • High development costs for custom solutions

  2. Technical Complexity

    • Modern e-commerce requires expertise in multiple technologies
    • Payment integration complexity across different providers
    • Performance optimization challenges for large catalogs

  3. Internationalization Requirements

    • Supporting multiple languages and currencies is complex
    • Localized checkout processes vary by region
    • Cultural adaptation beyond translation

  4. User Experience Expectations

    • Consumers expect fast, responsive experiences
    • Mobile-first design is critical
    • Accessibility compliance is increasingly required

Goals & Objectives

Primary Goals

  1. Accelerate Time-to-Market

    • Reduce e-commerce development time from months to weeks
    • Provide production-ready components and workflows
    • Enable rapid customization and branding

  2. Deliver Superior User Experience

    • Achieve <2 second page load times
    • Provide seamless checkout experience with <3% abandonment improvement
    • Support all major devices and browsers

  3. Enable Global Commerce

    • Support multiple languages (German, French, Italian, English)
    • Handle multiple currencies and payment methods
    • Accommodate regional compliance requirements

  4. Ensure Scalability & Performance

    • Support 10,000+ concurrent users
    • Handle catalogs with 100,000+ products
    • Maintain 99.9% uptime

Secondary Goals

  1. Developer Experience

    • Provide comprehensive documentation and examples
    • Maintain clean, well-commented codebase
    • Enable easy customization and extension

  2. Business Flexibility

    • Support B2B and B2C commerce models
    • Enable multiple vendor/marketplace scenarios
    • Provide analytics and reporting integration points

Target Audience

Primary Users

1. E-commerce Business Owners

  • Demographics: SMB to Enterprise level businesses
  • Pain Points: Need modern storefront without technical complexity
  • Goals: Increase conversion rates, expand to new markets
  • Technical Expertise: Low to medium

2. Development Agencies

  • Demographics: Web development agencies serving e-commerce clients
  • Pain Points: Starting each project from scratch, maintaining multiple codebases
  • Goals: Deliver high-quality solutions faster, reduce development costs
  • Technical Expertise: High

3. Enterprise IT Teams

  • Demographics: Large organizations with internal development teams
  • Pain Points: Legacy system modernization, compliance requirements
  • Goals: Scalable, maintainable solutions with enterprise features
  • Technical Expertise: High

Secondary Users

4. End Customers (Shoppers)

  • Demographics: Global consumers across age groups
  • Pain Points: Slow websites, complex checkout processes, limited payment options
  • Goals: Fast, easy shopping experience
  • Technical Expertise: Mixed

5. Content Managers/Marketers

  • Demographics: Business users managing storefront content
  • Pain Points: Technical barriers to content updates
  • Goals: Easy content management and optimization
  • Technical Expertise: Low to medium

Core Features & Requirements

1. Product Management

  • Product Catalog

    • Support for simple, configurable, and bundle products
    • Multi-media product galleries with zoom and fullscreen
    • Product variations (size, color, etc.)
    • Inventory tracking and stock status
    • Product reviews and ratings (integration ready)

  • Category Management

    • Hierarchical category structure
    • Category-based navigation
    • Breadcrumb navigation
    • Category landing pages

2. Shopping Cart & Checkout

  • Cart Functionality

    • Add/remove/update cart items
    • Guest checkout capability
    • Persistent cart across sessions
    • Real-time inventory checking
    • Side cart for quick access

  • Checkout Process

    • Multi-step checkout flow on one page (Address → Contact → Payment)
    • Address book management
    • Multiple shipping addresses
    • Guest checkout with account creation option
    • Order summary and confirmation

3. User Authentication & Accounts

  • Authentication Methods

    • Email/password authentication
    • WebAuthn (passwordless) support
    • Guest user management
    • Social login integration ready

  • Account Management

    • User profile management
    • Order history and tracking
    • Address book
    • Email preferences
    • Password management

4. Payment Processing

  • Payment Methods

    • Stripe integration for cards
    • Datatrans for Swiss payments
    • Cryptocurrency via Cryptopay
    • Invoice payments
    • Payment fee calculation

  • Payment Security

    • PCI compliance through providers
    • Secure tokenization
    • Fraud detection integration ready

5. Order Management

  • Order Processing
    • Order status tracking
    • Order confirmation emails
    • Order history for customers
    • Order details and invoices

6. Internationalization

  • Multi-language Support

    • German, French, Italian, English
    • RTL language support ready
    • Translation management tools
    • Locale-specific formatting

  • Multi-currency Support

    • Currency selection
    • Exchange rate integration ready
    • Locale-specific pricing display

7. Search & Navigation

  • Product Discovery
    • Search functionality
    • Category navigation
    • Product filtering (integration ready)
    • Product sorting options

8. Mobile & Responsive Design

  • Mobile Optimization
    • Mobile-first responsive design
    • Touch-optimized interactions
    • Progressive Web App capabilities
    • Offline functionality (service worker)

9. Performance & SEO

  • Performance Features

    • Server-side rendering
    • Image optimization
    • Code splitting and lazy loading
    • CDN integration ready

  • SEO Optimization

    • Meta tag management
    • Structured data support
    • Sitemap generation ready
    • Clean URL structure

10. Admin & Business Tools

  • Analytics Integration
    • Google Analytics ready
    • Custom event tracking
    • Conversion tracking
    • Performance monitoring

User Stories & Workflows

Epic 1: Product Discovery & Browsing

User Story 1.1: Browse Products by Category

As a customer
I want to browse products by category
So that I can find products I'm interested in

Acceptance Criteria:

  • Categories are displayed in hierarchical navigation
  • Category pages show relevant products
  • Breadcrumb navigation shows current location
  • Mobile-friendly category browsing

User Story 1.2: Search for Products

As a customer
I want to search for specific products
So that I can quickly find what I'm looking for

Acceptance Criteria:

  • Search bar is prominently displayed
  • Search results are relevant and fast (<1 second)
  • No results state is handled gracefully
  • Search suggestions appear as user types

User Story 1.3: View Product Details

As a customer
I want to view detailed product information
So that I can make informed purchase decisions

Acceptance Criteria:

  • High-quality product images with zoom
  • Detailed product descriptions
  • Pricing clearly displayed
  • Stock status visible
  • Product variations selectable

Epic 2: Shopping Cart & Checkout

User Story 2.1: Add Products to Cart

As a customer
I want to add products to my cart
So that I can purchase multiple items together

Acceptance Criteria:

  • One-click add to cart from product pages
  • Quantity selection available
  • Cart updates reflect immediately
  • Visual feedback on successful addition

User Story 2.2: Review and Modify Cart

As a customer
I want to review and modify my cart contents
So that I can ensure I'm ordering what I want

Acceptance Criteria:

  • Cart contents clearly displayed
  • Quantity can be updated
  • Items can be removed
  • Total price updates in real-time
  • Continue shopping option available

User Story 2.3: Complete Checkout Process

As a customer
I want to complete my purchase securely
So that I can receive my ordered products

Acceptance Criteria:

  • Step-by-step checkout process
  • Multiple payment methods available
  • Address information collected and validated
  • Order confirmation provided
  • Email confirmation sent

Epic 3: User Account Management

User Story 3.1: Create User Account

As a customer
I want to create an account
So that I can track orders and save preferences

Acceptance Criteria:

  • Simple registration process
  • Email verification required
  • Password strength requirements
  • Optional account creation during checkout

User Story 3.2: Manage Account Information

As a registered customer
I want to manage my account information
So that I can keep my details current

Acceptance Criteria:

  • Profile information editable
  • Multiple addresses can be saved
  • Email preferences manageable
  • Password change functionality

User Story 3.3: View Order History

As a registered customer
I want to view my order history
So that I can track purchases and reorder items

Acceptance Criteria:

  • Chronological order listing
  • Order status and tracking information
  • Detailed order views available
  • Reorder functionality

Epic 4: Multi-language & Accessibility

User Story 4.1: Switch Languages

As an international customer
I want to view the site in my preferred language
So that I can understand the content and navigate easily

Acceptance Criteria:

  • Language selector prominently displayed
  • Full site translation available
  • Language preference remembered
  • Currency updates with language selection

Epic 5: Administration & Management

User Story 5.1: Monitor Site Performance

As a business owner
I want to monitor site performance and user behavior
So that I can optimize the customer experience

Acceptance Criteria:

  • Analytics integration available
  • Key metrics tracked (conversion, bounce rate, etc.)
  • Performance monitoring alerts
  • Customer journey tracking

Technical Requirements

Frontend Technology Stack

Core Framework

  • Next.js 15.3.4 - React framework with App Router
  • React 18.3.1 - UI library with hooks
  • TypeScript - Type safety and developer experience
  • Node.js 22.x - Runtime environment

Styling & UI

  • Tailwind CSS v4 - Utility-first CSS framework
  • Heroicons - Icon library
  • React Image Gallery - Product image galleries
  • React Markdown - Content rendering

State Management

  • Apollo Client 3.13.8 - GraphQL client and cache
  • React Hook Form - Form state management
  • React Context - Local UI state

Internationalization

  • React Intl (FormatJS) - Internationalization framework
  • Message extraction tools - Translation management

Backend Integration

GraphQL API

  • Unchained Engine - Headless e-commerce backend
  • Apollo Server - GraphQL server integration
  • Type generation - Automatic TypeScript types from schema

Authentication

  • JWT Tokens - Stateless authentication
  • HTTP-only cookies - Secure token storage
  • WebAuthn - Passwordless authentication
  • Guest sessions - Temporary user management

Performance Requirements

Page Load Times

  • Initial page load: <2 seconds
  • Subsequent navigation: <1 second
  • Search results: <1 second
  • Cart operations: <500ms

Scalability

  • Concurrent users: 10,000+
  • Product catalog: 100,000+ items
  • Order volume: 1,000+ orders/day
  • Uptime: 99.9%

Browser Support

  • Modern browsers: Chrome 90+, Firefox 88+, Safari 14+, Edge 90+
  • Mobile browsers: iOS Safari 14+, Chrome Mobile 90+
  • Progressive enhancement for older browsers

Security Requirements

Data Protection

  • HTTPS enforcement for all traffic
  • Secure cookie configuration (httpOnly, secure, sameSite)
  • Input validation and sanitization
  • XSS protection via Content Security Policy

Payment Security

  • PCI DSS compliance via payment providers
  • No card data storage on frontend
  • Secure payment tokenization
  • Fraud detection integration ready

Authentication Security

  • Password hashing via backend
  • Session management via secure cookies
  • Rate limiting for authentication attempts
  • CSRF protection via GraphQL proxy

Development Requirements

Code Quality

  • ESLint configuration for code standards
  • Prettier integration for formatting
  • TypeScript strict mode (partial implementation)

Testing Strategy

  • Manual testing procedures documented
  • Browser testing across supported platforms
  • Performance testing tools integration
  • Accessibility testing guidelines

Deployment

  • Railway ready deployment
  • Docker containerization support
  • Environment configuration via environment variables
  • CI/CD pipeline ready

Design & User Experience

Design System

Visual Identity

  • Color Palette: Slate-based with semantic colors
  • Typography: Modern, readable font stack with size scale
  • Spacing: Consistent 8px grid system
  • Icons: Heroicons library for consistency

Component Library

  • Form Components: TextField, EmailField, PasswordField, SelectField
  • Navigation: Header, Footer, Breadcrumbs, Sidebar
  • E-commerce: ProductCard, CartItem, AddToCartButton
  • Feedback: Loading states, Error messages, Success notifications

Responsive Design

  • Mobile-first approach
  • Breakpoints: sm (640px), md (768px), lg (1024px), xl (1280px)
  • Touch targets: Minimum 44px for mobile interactions
  • Readable text: Minimum 16px font size on mobile

User Experience Principles

Accessibility

  • WCAG 2.1 AA compliance target
  • Keyboard navigation support
  • Screen reader compatibility
  • High contrast mode support
  • Focus management for single-page app

Performance UX

  • Loading states for all async operations
  • Optimistic updates for immediate feedback
  • Progressive enhancement for core functionality
  • Offline capability for basic browsing

Conversion Optimization

  • Clear call-to-action buttons
  • Trust indicators (security badges, reviews)
  • Minimal checkout steps with progress indication
  • Guest checkout option to reduce friction

Integration Requirements

Payment Provider Integrations

Stripe Integration

  • Stripe Elements for secure card input
  • Payment Intents API for modern payment flow
  • Webhook handling for payment confirmations
  • Multi-currency support

Datatrans Integration

  • Swiss payment methods (PostFinance, TWINT, etc.)
  • 3D Secure authentication
  • Recurring payment support structure
  • Mobile payment optimization

Cryptocurrency Integration

  • Cryptopay API integration
  • QR code generation for payments
  • Real-time exchange rates
  • Transaction confirmation tracking

Third-Party Service Integrations

Email Services

  • SMTP configuration for transactional emails
  • Email template system integration ready
  • Delivery tracking and analytics
  • Multi-language email support

Analytics & Monitoring

  • Google Analytics 4 integration ready
  • Performance monitoring (Core Web Vitals)
  • Error tracking service integration
  • Custom event tracking capabilities

Push Notifications

  • Web Push API implementation
  • Service Worker for offline notifications
  • Subscription management interface
  • Cross-browser compatibility

Success Metrics

Key Performance Indicators (KPIs)

Business Metrics

  • Conversion Rate: Target 3-5% improvement over baseline
  • Average Order Value: Track trend and optimization opportunities
  • Cart Abandonment Rate: Target <70% (industry average 70-75%)
  • Customer Lifetime Value: Track cohort performance
  • Revenue per Visitor: Measure monetization efficiency

Technical Metrics

  • Page Load Speed: <2 seconds for 95th percentile
  • Core Web Vitals: Green ratings for LCP, FID, CLS
  • Uptime: 99.9% availability target
  • Error Rate: <0.1% of requests
  • API Response Time: <500ms for 95th percentile

User Experience Metrics

  • Task Completion Rate: >95% for core user flows
  • Time to Complete Purchase: <5 minutes average
  • Search Success Rate: >90% of searches yield results
  • Mobile Conversion Rate: Within 10% of desktop rates
  • User Satisfaction Score: >4.5/5 via surveys

Development Metrics

  • Time to Deploy: <30 minutes for standard updates
  • Code Coverage: >80% for critical paths
  • Build Time: <5 minutes for full build
  • Hot Reload Time: <3 seconds for development changes

Measurement Tools

Analytics Implementation

  • Google Analytics 4 for user behavior tracking
  • GTM (Google Tag Manager) for flexible tracking
  • Custom dashboard for business metrics
  • A/B testing framework for optimization

Performance Monitoring

  • Lighthouse CI for automated performance testing
  • Real User Monitoring for actual user experience
  • Synthetic monitoring for uptime and performance
  • Error tracking for issue identification

Implementation Timeline

Phase 1: Foundation (Weeks 1-4)

  • Core architecture setup
  • Basic product browsing
  • User authentication
  • Shopping cart functionality
  • Basic checkout flow

Phase 2: E-commerce Features (Weeks 5-8)

  • Payment integrations (Stripe, Datatrans)
  • Order management
  • User account features
  • Search functionality
  • Mobile optimization

Phase 3: Advanced Features (Weeks 9-12)

  • Multi-language support
  • Cryptocurrency payments
  • Push notifications
  • Performance optimization
  • SEO implementation

Phase 4: Polish & Launch (Weeks 13-16)

  • Design refinements
  • Accessibility improvements
  • Analytics integration
  • Testing and bug fixes
  • Documentation completion
  • Launch preparation

Phase 5: Post-Launch (Ongoing)

  • Performance monitoring
  • User feedback integration
  • Feature enhancements
  • Security updates
  • Scaling optimizations

Risk Assessment

Technical Risks

High Risk

  1. Third-party API Changes

    • Risk: Payment providers or Unchained Engine API changes
    • Mitigation: Version pinning, comprehensive testing, fallback strategies

  2. Performance at Scale

    • Risk: Site performance degrades with high traffic or large catalogs
    • Mitigation: Load testing, CDN implementation, caching strategies

Medium Risk

  1. Browser Compatibility

    • Risk: Features not working in older browsers
    • Mitigation: Progressive enhancement, polyfills, testing matrix

  2. Security Vulnerabilities

    • Risk: Security breaches affecting customer data
    • Mitigation: Regular security audits, dependency updates, secure coding practices

Low Risk

  1. Translation Quality
    • Risk: Poor quality translations affecting user experience
    • Mitigation: Professional translation services, native speaker review

Business Risks

High Risk

  1. Market Competition
    • Risk: Established e-commerce platforms offering similar features
    • Mitigation: Focus on unique value propositions, continuous innovation

Medium Risk

  1. Regulatory Compliance

    • Risk: Changes in data protection or e-commerce regulations
    • Mitigation: Stay informed on regulatory changes, compliance-first approach

  2. Technology Adoption

    • Risk: Slow adoption due to learning curve
    • Mitigation: Comprehensive documentation, community building, support resources

Appendices

Appendix A: Technical Architecture Diagram

┌─────────────────┐    ┌─────────────────┐    ┌─────────────────┐
│   Next.js App   │    │  Unchained API  │    │  External APIs  │
│                 │    │                 │    │                 │
│  ┌───────────┐  │    │  ┌───────────┐  │    │  ┌───────────┐  │
│  │   Pages   │  │    │  │ GraphQL   │  │    │  │  Stripe   │  │
│  └───────────┘  │    │  │ Endpoint  │  │    │  │    API    │  │
│  ┌───────────┐  │◄──►│  └───────────┘  │    │  └───────────┘  │
│  │Components │  │    │  ┌───────────┐  │    │  ┌───────────┐  │
│  └───────────┘  │    │  │ Database  │  │    │  │ Datatrans │  │
│  ┌───────────┐  │    │  │           │  │    │  │    API    │  │
│  │   Hooks   │  │    │  └───────────┘  │    │  └───────────┘  │
│  └───────────┘  │    │                 │    │  ┌───────────┐  │
│                 │    │                 │    │  │ Cryptopay │  │
└─────────────────┘    └─────────────────┘    │  │    API    │  │
                                              │  └───────────┘  │
                                              └─────────────────┘

Appendix B: User Flow Diagrams

Checkout Flow

Product Page → Add to Cart → Cart Review → Checkout Start →
Address Entry → Contact Info → Payment Method → Order Review →
Payment Processing → Order Confirmation → Email Confirmation

Authentication Flow

Login Attempt → Credential Validation → [Success] → User Dashboard
                                    → [Failure] → Error Display → Retry
                                    
Guest Checkout → Order Completion → Account Creation Prompt → [Yes] → Registration
                                                           → [No] → Order Confirmation

Appendix C: API Endpoints Reference

GraphQL Queries

  • products(tags, limit, offset) - Product listing
  • product(id, slug) - Product details
  • user(id) - User information
  • cart(id) - Cart contents
  • orders(userId, limit) - Order history

GraphQL Mutations

  • addCartProduct(productId, quantity) - Add to cart
  • updateCartProduct(itemId, quantity) - Update cart item
  • removeCartProduct(itemId) - Remove from cart
  • createOrder(orderInput) - Create order
  • updateUser(userInput) - Update user profile

Appendix D: Environment Variables

Required Configuration

# Backend Connection
UNCHAINED_ENDPOINT=https://api.unchained.shop/graphql

# Payment Providers
STRIPE_PUBLISHABLE_KEY=pk_test_...
DATATRANS_MERCHANT_ID=...
CRYPTOPAY_API_KEY=...

# Push Notifications
VAPID_PUBLIC_KEY=...

# Theme Configuration
THEME_PRIMARY_COLOR=#0f172a
THEME_SECONDARY_COLOR=#475569

Appendix E: Deployment Checklist

Pre-deployment

  • Environment variables configured
  • SSL certificate valid
  • Database migrations complete
  • Payment provider testing complete
  • Analytics tracking verified

Post-deployment

  • Health checks passing
  • Error monitoring active
  • Performance metrics baseline established
  • Backup procedures verified
  • Documentation updated

Document Version: 1.0
Last Updated: July 2025
Next Review: Quarterly
Approval: Product Team, Engineering Team, Business Stakeholders