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# CRM Application – Product Requirements Document
## Executive Summary
We require a comprehensive Customer Relationship Management (CRM) application designed for personal use and small businesses. The application should provide contact management, project tracking, task organization, email integration, and AI-powered assistance capabilities.
**Project Type**: Full-stack web application with Progressive Web App (PWA) capabilities
**Target Users**: Individual professionals, freelancers, small business owners
**Primary Goal**: Centralized relationship and project management with intelligent automation
## Technical Architecture Requirements
### System Architecture
– **Frontend**: Modern React-based single-page application (SPA)
– **Backend**: RESTful API server with authentication
– **Database**: File-based database for single-user deployment
– **Integration**: Third-party APIs (Gmail, AI services)
### Technology Stack Requirements
– **Frontend Framework**: React with TypeScript for type safety
– **UI Library**: Modern component library with dark/light theme support
– **Backend Framework**: Node.js with Express.js
– **Database**: SQLite with ORM for type-safe queries
– **Authentication**: JWT-based authentication system
– **Styling**: Utility-first CSS framework (Tailwind CSS or similar)
– **PWA**: Mobile app capabilities with offline functionality
## Core Feature Requirements
### 1. User Authentication System
#### Requirements
– **Single User Architecture**: Application designed for one primary user
– **Secure Login**: Email/password authentication with password hashing
– **Session Management**: JWT tokens with configurable expiration
– **Default User Setup**: Automatic initialization system for first-time setup
– **Password Security**: Industry-standard password hashing and validation
#### Technical Specifications
– JWT token expiration: 7 days
– Password hashing: bcrypt with salt rounds
– Default credentials: admin@personal-crm.com / admin123
– Automatic logout on token expiration
– Secure token storage in frontend
#### Acceptance Criteria
– User can log in with email and password
– Secure session handling with automatic logout
– First-time setup creates default user automatically
– Password security follows industry best practices
### 2. Contact Management System
#### Requirements
– **Complete CRUD Operations**: Create, read, update, delete contacts
– **Contact Types**: Support for CLIENT and PARTNER classifications
– **Contact Information**: Name, email, phone, type, notes, timestamps
– **Data Import**: CSV/Excel file import with intelligent field mapping
– **Search and Filter**: Real-time search and filtering capabilities
– **Project Association**: Many-to-many relationship with projects
#### Technical Specifications
– Contact fields: firstName, lastName, email, phone, type, notes, createdAt, updatedAt
– File import: Support CSV, Excel (.xlsx, .xls), TSV formats
– File size limit: 10MB for import files
– Auto-mapping: Intelligent field detection for common CSV formats
– Search: Real-time search across all contact fields
#### Data Import Features
– **Upload Interface**: Drag-and-drop file upload with progress tracking
– **Field Mapping**: Visual field mapping interface with auto-detection
– **Preview System**: Sample data preview before import execution
– **Batch Processing**: Efficient processing of large contact lists
– **Error Handling**: Detailed error reporting and validation
#### Acceptance Criteria
– Users can create, edit, view, and delete contacts
– CSV/Excel import works with field mapping interface
– Contacts can be associated with multiple projects
– Search and filtering work in real-time
– Contact types are properly categorized and displayed
### 3. Project Management System
#### Requirements
– **Project Lifecycle**: Support for PLANNED, ACTIVE, COMPLETED statuses
– **Project Information**: Title, description, status, dates, owner
– **Contact Associations**: Link multiple contacts to projects
– **Task Container**: Projects contain and organize related tasks
– **Email Organization**: Integration with email systems for project-specific organization
#### Technical Specifications
– Project statuses: PLANNED, ACTIVE, COMPLETED
– Fields: title, description, status, startDate, endDate, ownerId, createdAt, updatedAt
– Relationships: Many-to-many with contacts, one-to-many with tasks
– Gmail integration: Automatic label creation for email organization
#### Project Features
– **Status Workflow**: Visual status progression and management
– **Contact Management**: Add/remove contacts from projects
– **Task Organization**: Create and manage tasks within projects
– **Progress Tracking**: Visual indicators for project completion
– **Timeline Management**: Project start and end date tracking
#### Acceptance Criteria
– Users can create projects with full lifecycle management
– Projects can be associated with multiple contacts
– Project status changes are properly tracked and displayed
– Tasks can be organized within projects
– Email integration creates project-specific organization
### 4. Task Management System
#### Requirements
– **Task Workflow**: TODO, IN_PROGRESS, DONE status progression
– **Task Information**: Title, description, status, due date, priority
– **Project Association**: Optional linking to projects
– **Due Date Management**: Calendar-based date selection and tracking
– **Overdue Detection**: Automatic identification of overdue tasks
#### Technical Specifications
– Task statuses: TODO, IN_PROGRESS, DONE
– Fields: title, description, status, dueDate, projectId, userId, createdAt, updatedAt
– Due date tracking: Calendar picker with date validation
– Priority calculation: Based on due date proximity
#### Task Features
– **Kanban Interface**: Visual task board with drag-and-drop functionality
– **Multiple Views**: Card view, list view, table view for tasks
– **Filtering**: Filter by status, project, due date, overdue
– **Quick Actions**: Fast status updates and task management
– **Dashboard Integration**: Upcoming and overdue task widgets
#### Acceptance Criteria
– Users can create, edit, and manage tasks with full workflow
– Tasks can be optionally associated with projects
– Due date tracking with overdue detection works properly
– Multiple view formats provide different task perspectives
– Task filtering and sorting work across all views
### 5. Gmail Integration System
#### Requirements
– **OAuth2 Authentication**: Secure Google account integration
– **Email Synchronization**: Automatic email fetching and caching
– **Offline Access**: Cached emails available without internet connection
– **Contact Email History**: View emails associated with specific contacts
– **Project Email Organization**: Link emails to projects via Gmail labels
#### Technical Specifications
– OAuth2 scopes: gmail.readonly, gmail.modify
– Email caching: Store email metadata locally for offline access
– Label management: Create and manage Gmail labels for project organization
– Email matching: Associate emails with contacts by email address
– Sync frequency: Configurable email synchronization intervals
#### Gmail Features
– **Popup OAuth Flow**: User-friendly authentication process
– **Connection Management**: Connect/disconnect Gmail accounts
– **Manual Sync**: Trigger manual email synchronization
– **Email Threading**: Maintain Gmail conversation threading
– **Label Management**: Create project-specific Gmail labels automatically
#### Email Organization
– **Project Labels**: Automatic Gmail label creation for projects
– **Email Linking**: Associate emails with projects via labeling system
– **Email Search**: Find emails within contact conversations
– **Timeline View**: Chronological email conversation display
#### Acceptance Criteria
– Users can connect Gmail accounts via OAuth2
– Emails are automatically synced and cached for offline access
– Contact email history displays properly
– Project-email linking works through Gmail labels
– Manual sync and connection management function correctly
### 6. AI Chat Assistant System
#### Requirements
– **Multi-Provider Support**: Support multiple AI services (Google Gemini, extensible for OpenAI, Claude)
– **Real-time Chat**: Streaming responses with live text generation
– **Conversation Management**: Save and organize chat conversations
– **Model Selection**: Choose from different AI models per provider
– **Memory Optimization**: Automatic conversation summarization for token efficiency
#### Technical Specifications
– AI Providers: Google Gemini
– Streaming: Real-time response streaming to frontend
– Conversation storage: Save conversations with messages and metadata
– API key encryption: Secure storage of provider API keys
– Memory management: Automatic summarization to reduce token usage
#### AI Features
– **Provider Management**: Add, configure, and manage AI providers
– **Model Selection**: Choose specific models for different use cases
– **Conversation History**: Save and retrieve previous conversations
– **Streaming Responses**: Real-time chat experience
– **Context Management**: Maintain conversation context efficiently
#### Memory Optimization
– **Automatic Summarization**: Compress old messages to save tokens
– **Token Tracking**: Monitor and optimize API usage
– **Context Preservation**: Maintain important conversation context
– **Performance Optimization**: Up to 83% token reduction through summarization
#### Acceptance Criteria
– Users can configure and use multiple AI providers
– Real-time streaming chat works smoothly
– Conversation history is properly saved and retrievable
– Model selection persists across sessions
– Memory optimization reduces API costs effectively
### 7. Dashboard and Analytics
#### Requirements
– **Summary Statistics**: Overview of contacts, projects, tasks, conversations
– **Task Management**: Upcoming tasks, overdue alerts, recent activity
– **Visual Indicators**: Progress bars, status counts, trend indicators
– **Recent Activity**: Timeline of recent changes and updates
– **Quick Actions**: Direct access to common operations
#### Technical Specifications
– Real-time data aggregation from all modules
– Dashboard widgets: Statistics cards, task lists, activity timeline
– Date-based filtering: Show upcoming tasks (next 7 days)
– Status-based grouping: Group entities by their current status
– Performance optimization: Efficient database queries for dashboard data
#### Dashboard Components
– **Statistics Overview**: Total counts for all major entities
– **Task Dashboard**: Upcoming, overdue, and completed task tracking
– **Project Progress**: Visual project status distribution
– **Recent Activity**: Timeline of recent system changes
– **Quick Navigation**: Direct links to major application sections
#### Acceptance Criteria
– Dashboard loads quickly with current system statistics
– Upcoming and overdue tasks are accurately identified
– Recent activity timeline shows relevant system changes
– Visual indicators properly represent data states
– Quick actions provide efficient access to common operations
### 8. Database Import/Export System
#### Requirements
– **Multi-Format Export**: JSON, SQLite backup, CSV bundle export options
– **Smart Import**: Conflict detection and resolution for duplicate data
– **Rollback Management**: Automatic backup points with restoration capabilities
– **Data Validation**: File format validation and security checking
– **Progress Tracking**: Real-time operation progress and completion status
#### Technical Specifications
– Export formats: JSON (recommended), SQLite database backup, CSV ZIP bundle
– File size limits: 50MB for imports, unlimited for exports
– Conflict detection: ID matching, unique field analysis, relationship validation
– Rollback system: Automatic database backups before destructive operations
– Metadata tracking: Checksums, timestamps, record counts for data integrity
#### Export Features
– **JSON Export**: Complete data with relationships for re-import
– **SQLite Export**: Direct database backup for fastest restoration
– **CSV Export**: Individual tables as ZIP archive for analysis
– **Metadata**: Export timestamps, checksums, and record counts
– **Download Management**: Web interface for export file management
#### Import Features
– **File Upload**: Drag-and-drop interface with validation
– **Conflict Analysis**: Smart duplicate detection across all data types
– **Resolution Interface**: Side-by-side data comparison for decision-making
– **Bulk Operations**: Apply same resolution to multiple conflicts
– **Progress Tracking**: Real-time import status with detailed results
#### Rollback System
– **Automatic Backups**: Create restoration points before every import
– **Web Management**: Browser-based rollback listing and execution
– **Terminal Access**: Command-line rollback for advanced users
– **Safety Features**: Confirmation dialogs and detailed change warnings
#### Acceptance Criteria
– Users can export data in multiple formats with proper metadata
– Import system detects and resolves conflicts intelligently
– Rollback system provides safety net for data operations
– File validation prevents security issues and data corruption
– Progress tracking gives clear feedback during operations
### 9. Advanced User Preferences and Settings System
#### Requirements
– **Profile Management**: Complete user profile editing with personal information
– **Password Security**: Secure password change functionality
– **AI Provider Configuration**: Add, manage, and test multiple AI service providers
– **Chat Preferences**: Persistent AI model and provider selection
– **Visual Customization**: Advanced glassmorphism and background customization
– **Theme Management**: Dark/light mode with system preference detection
#### Technical Specifications
– Profile fields: Name, email with validation and update capabilities
– Password security: Current password verification, new password strength validation
– AI provider support: Google Gemini, extensible architecture for OpenAI, Claude
– Model persistence: Save last used AI provider and model per user
– Visual settings: Background images, patterns, glassmorphism parameters
– Theme detection: Automatic system preference detection with manual override
#### User Profile Features
– **Profile Editing**: In-place editing with save/cancel functionality
– **Avatar Support**: Profile picture upload and management (future enhancement)
– **Email Validation**: Real-time email format validation
– **Form Validation**: Client-side and server-side validation with error handling
#### AI Provider Management
– **Multi-Provider Support**: Add multiple instances of same provider type
– **API Key Security**: Encrypted storage of provider API keys
– **Connection Testing**: Test provider connectivity and model availability
– **Model Discovery**: Automatic fetching of available models per provider
– **Provider Toggle**: Enable/disable providers without deletion
– **Default Selection**: Set preferred provider and model for new conversations
#### Visual Customization System
– **Glassmorphism Engine**: Dynamic glass effect with real-time customization
– **Background Patterns**: 6 built-in patterns (dots, grid, diagonal, noise, hexagon, geometric)
– **Custom Backgrounds**: Upload and manage custom background images
– **Glass Parameters**: Opacity (0-100%), blur intensity (0-20px), color selection
– **Color Presets**: 10 predefined color schemes for glass effects
– **Film Grain Effect**: Optional vintage film grain overlay with intensity control
– **Real-time Preview**: Live preview of all visual changes
#### Advanced Design Features
– **Pattern Library**: Professional background patterns for different aesthetics
– **Color Theory**: Carefully selected color presets based on design principles
– **Dynamic CSS Variables**: Real-time CSS custom property updates
– **Performance Optimization**: Efficient background rendering and caching
– **Accessibility**: High contrast modes and reduced motion support
#### Acceptance Criteria
– Users can edit profile information with proper validation
– Password changes require current password verification
– AI providers can be added, tested, and managed securely
– Visual customization updates in real-time with live preview
– All settings persist across browser sessions and devices
– Theme changes apply immediately throughout the application
### 10. Progressive Web App (PWA) Features
#### Requirements
– **Mobile Responsive**: Optimized interface for mobile devices
– **Offline Functionality**: Core features work without internet connection
– **App-like Experience**: Native app behavior on mobile devices
– **Touch Optimization**: Mobile-friendly interactions and gestures
– **Install Capability**: Add to home screen functionality
#### Technical Specifications
– Responsive breakpoints: 640px, 768px, 1024px (mobile-first design)
– Touch targets: Minimum 44px for all interactive elements
– PWA manifest: Complete app manifest with icons and metadata
– Service worker: Caching strategy for offline functionality
– Network detection: Graceful handling of connectivity changes
#### Mobile Features
– **Responsive Navigation**: Mobile hamburger menu, desktop sidebar
– **Touch Interface**: Optimized buttons, forms, and interactions
– **Offline Cache**: Critical app data available offline
– **App Installation**: Add to home screen with app icon
– **Cross-device Sync**: Data synchronization across devices
#### Acceptance Criteria
– Application works properly on mobile devices
– Core functionality available offline
– App can be installed on mobile home screen
– Touch interactions are optimized for mobile use
– Responsive design works across all screen sizes
## Technical Infrastructure Requirements
### Database Design
– **Single User Schema**: Optimized for single-user deployment
– **Relational Design**: Proper relationships between entities
– **Migration System**: Database schema versioning and updates
– **Backup Strategy**: Automated backup and recovery capabilities
– **Performance**: Indexed queries for efficient data retrieval
### API Design
– **RESTful Architecture**: Standard REST API design patterns
– **Authentication Middleware**: JWT token validation on protected routes
– **Error Handling**: Consistent error responses with proper HTTP codes
– **Input Validation**: Server-side validation for all user inputs
– **CORS Configuration**: Proper cross-origin request handling
### Security Requirements
– **Authentication Security**: Secure password hashing and token management
– **Input Validation**: Prevent SQL injection and XSS attacks
– **File Upload Security**: Validate file types and prevent malicious uploads
– **API Security**: Rate limiting and request validation
– **Data Encryption**: Encrypt sensitive data like API keys
### Performance Requirements
– **Page Load Time**: Initial page load under 3 seconds
– **API Response Time**: Database queries under 500ms
– **File Upload**: Support up to 50MB files with progress tracking
– **Caching Strategy**: Efficient data caching for improved performance
– **Database Optimization**: Indexed queries and efficient relationships
## Integration Requirements
### Third-Party Services
#### Gmail API Integration
– **OAuth2 Implementation**: Complete Google OAuth2 flow
– **API Scopes**: gmail.readonly, gmail.modify permissions
– **Rate Limiting**: Respect Gmail API rate limits
– **Error Handling**: Graceful handling of API failures
– **Token Management**: Automatic token refresh and expiration handling
#### AI Service Integration
– **Google Gemini**: Integration with Google’s Gemini AI models
– **Extensible Architecture**: Framework for adding additional AI providers
– **API Key Management**: Secure storage and encryption of API keys
– **Streaming Support**: Real-time response streaming capabilities
– **Error Recovery**: Handling of AI service failures and timeouts
### Development Environment
– **Local Development**: Complete local development setup
– **Environment Variables**: Secure configuration management
– **Database Setup**: Automated database initialization and migrations
– **Dependency Management**: Clear dependency tracking and updates
– **Build Process**: Automated build and deployment process
## User Interface Requirements
### Design System
– **Modern Glassmorphism UI**: Advanced glass morphism design with customizable parameters
– **Component Library**: Reusable UI components with consistent styling and glass effects
– **Theme Support**: Dark and light mode with system preference detection
– **Dynamic Visual Engine**: Real-time customization of background patterns and glass effects
– **Accessibility**: WCAG compliant interface design with high contrast support
– **Responsive Layout**: Mobile-first responsive design approach
### Glassmorphism Design Requirements
#### Core Glass Effect System
– **Dynamic Glass Properties**: Real-time adjustable opacity, blur, and color
– **CSS Custom Properties**: Dynamic CSS variables for live updates
– **Multi-layer Glass**: Different glass intensities (light, normal, heavy)
– **Performance Optimization**: Hardware-accelerated backdrop filters
– **Cross-browser Support**: Webkit and standard backdrop filter support
#### Glass Component Variations
– **Standard Glass**: Primary interface elements with medium opacity
– **Light Glass**: Subtle glass for secondary elements
– **Heavy Glass**: Strong glass effect for prominent elements
– **Interactive Glass**: Hover and focus states with enhanced glass effects
– **Contextual Glass**: Different glass styles for cards, modals, tables
#### Background System
– **Pattern Engine**: 6 professional background patterns
– **Subtle Dots**: Clean dotted pattern for minimal design
– **Grid Lines**: Architectural grid for technical feel
– **Diagonal Lines**: Dynamic stripes for energy
– **Organic Texture**: Random dots for natural texture
– **Hexagon Pattern**: Tech/modern geometric feel
– **Geometric Shapes**: Angular modern design
#### Color Customization
– **10 Color Presets**: Professionally selected color schemes
– Pure White (255, 255, 255) – Classic glass
– Primary Green (66, 211, 146) – Brand color
– Sky Blue (59, 130, 246) – Cool blue
– Violet (139, 92, 246) – Modern purple
– Rose (236, 72, 153) – Warm pink
– Sunset Orange (249, 115, 22) – Vibrant orange
– Coral Red (239, 68, 68) – Bold red
– Golden Yellow (245, 158, 11) – Warm gold
– Aqua Cyan (6, 182, 212) – Fresh cyan
– Neutral Gray (156, 163, 175) – Subtle gray
#### Advanced Visual Effects
– **Film Grain Overlay**: Optional vintage film grain effect
– **Grain Intensity Control**: Adjustable grain opacity (0-100%)
– **Animation Performance**: Smooth 60fps transitions and updates
– **Memory Efficiency**: Optimized CSS rendering and caching
#### User Customization Interface
– **Real-time Preview**: Live updates as users adjust settings
– **Slider Controls**: Intuitive opacity and blur adjustment
– **Color Picker**: Visual color selection with presets
– **Pattern Gallery**: Visual pattern selection interface
– **Persistence**: All settings saved to browser localStorage
– **Reset Options**: Quick reset to default settings
#### Technical Implementation
– **CSS Variables**: Dynamic custom properties for real-time updates
– **Local Storage**: Persistent settings across browser sessions
– **Performance**: Efficient backdrop-filter and glass rendering
– **Fallbacks**: Graceful degradation for unsupported browsers
– **Accessibility**: High contrast modes and reduced motion support
### User Experience
– **Intuitive Navigation**: Clear navigation with logical information architecture
– **Loading States**: Proper loading indicators and progress feedback
– **Error Messages**: User-friendly error messages and recovery options
– **Form Validation**: Real-time form validation with clear error indicators
– **Keyboard Navigation**: Full keyboard accessibility support
### Interface Components
– **Dashboard**: Central hub with statistics and quick actions
– **Data Tables**: Sortable, filterable data tables with pagination
– **Forms**: User-friendly forms with validation and error handling
– **Modals**: Modal dialogs for detailed views and confirmations
– **Navigation**: Responsive navigation with mobile hamburger menu
## Testing Requirements
### Functional Testing
– **User Authentication**: Complete login/logout flow testing
– **CRUD Operations**: Create, read, update, delete testing for all entities
– **File Import**: CSV/Excel import functionality testing
– **Gmail Integration**: OAuth flow and email synchronization testing
– **AI Chat**: Conversation functionality and streaming response testing
### Integration Testing
– **API Testing**: Complete API endpoint testing with various scenarios
– **Database Testing**: Data integrity and relationship testing
– **Third-party Integration**: Gmail and AI service integration testing
– **Cross-browser Testing**: Compatibility testing across major browsers
– **Mobile Testing**: Responsive design and PWA functionality testing
### Performance Testing
– **Load Testing**: Application performance under typical usage
– **Database Performance**: Query optimization and response time testing
– **File Upload Testing**: Large file handling and progress tracking
– **Memory Usage**: Frontend memory usage and optimization
– **API Performance**: Backend API response time optimization
## Deployment Requirements
### Environment Setup
– **Production Environment**: Deployment configuration for production use
– **Environment Variables**: Secure configuration management
– **Database Setup**: Production database initialization and configuration
– **SSL Configuration**: HTTPS setup for secure connections
– **Backup Strategy**: Automated backup and recovery procedures
### Hosting Requirements
– **Port Configuration**: Frontend (3000), Backend (3001)
– **File Storage**: Local file system storage for uploads and exports
– **Scalability**: Architecture capable of future scaling if needed
## Documentation Requirements
### Technical Documentation
– **Installation Guide**: Complete setup and installation instructions
– **API Documentation**: Comprehensive API endpoint documentation
– **Database Schema**: Complete database design and relationship documentation
– **Configuration Guide**: Environment setup and configuration instructions
– **Troubleshooting Guide**: Common issues and resolution procedures
### User Documentation
– **User Manual**: Complete user guide for all application features
– **Feature Guide**: Detailed explanation of each feature and its usage
– **Import Guide**: Instructions for contact import and data management
– **Integration Guide**: Setup instructions for Gmail and AI integrations
– **FAQ**: Frequently asked questions and answers
## Project Timeline Expectations
### Phase 1: Core Foundation (Estimated: 4-6 weeks)
– User authentication system
– Basic CRUD operations for contacts, projects, tasks
– Database design and setup
– Basic UI framework and responsive design
### Phase 2: Advanced Features (Estimated: 4-5 weeks)
– Gmail OAuth integration and email synchronization
– Contact import system with CSV/Excel support
– Dashboard and analytics implementation
– Advanced UI components and interactions
### Phase 3: AI Integration (Estimated: 3-4 weeks)
– AI provider architecture and Google Gemini integration
– Chat interface with streaming responses
– Conversation management and memory optimization
– AI provider configuration and management
### Phase 4: Data Management (Estimated: 2-3 weeks)
– Import/export system with multiple formats
– Conflict detection and resolution interface
– Rollback management and safety features
– Terminal script integration
### Phase 5: Advanced Design and User Preferences (Estimated: 3-4 weeks)
– Glassmorphism design system implementation
– Dynamic visual customization engine
– User preferences and settings system
– Profile management and password security
– Background patterns and color system implementation
### Phase 6: PWA and Polish (Estimated: 2-3 weeks)
– Progressive Web App implementation
– Mobile optimization and touch interfaces
– Performance optimization and caching
– Cross-browser compatibility testing
### Phase 7: Documentation and Deployment (Estimated: 1-2 weeks)
– Complete documentation creation
– Deployment setup and configuration
– User training materials
– Final delivery and handover
**Total Estimated Timeline: 19-27 weeks**
## Budget Considerations
### Development Scope
– **Full-stack Development**: Frontend and backend development
– **Database Design**: Complete database architecture and implementation
– **Third-party Integrations**: Gmail API and AI service integrations
– **UI/UX Design**: Complete interface design and user experience
– **Testing**: Comprehensive testing across all features
– **Documentation**: Complete technical and user documentation
### Maintenance Considerations
– **Bug Fixes**: Post-launch bug fixes and minor updates
– **Security Updates**: Regular security updates and patches
– **Feature Enhancements**: Future feature additions and improvements
– **Third-party Updates**: Updates for Gmail API and AI service changes
– **Performance Optimization**: Ongoing performance monitoring and optimization
## Quality Assurance Requirements
### Code Quality
– **Code Standards**: Consistent coding standards and best practices
– **Type Safety**: TypeScript implementation for frontend and API contracts
– **Error Handling**: Comprehensive error handling and user feedback
– **Security**: Secure coding practices and vulnerability prevention
– **Performance**: Optimized code for fast loading and responsive interactions
### Deliverables
– **Source Code**: Complete, well-documented source code
– **Database**: Fully configured database with sample data
– **Documentation**: Complete technical and user documentation
– **Deployment Package**: Ready-to-deploy application package
– **Testing Suite**: Comprehensive test coverage for all features
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*This Product Requirements Document serves as the comprehensive specification for developing a CRM application. All features, technical requirements, and quality standards outlined above should be addressed in development proposals and final deliverables.*
