User Authentication System High Security The system shall provide secure user authentication using industry-standard protocols. Users must enter credentials in the format username@domain.com with a password containing at least 8characters including 1 uppercase letter, 1 lowercase letter, and at least 1 special character. Press Ctrl+Alt+L to lock the session. Active Data Validation and Processing Medium Data Management All input data shall be validated using regular expressions before processing. The system must reject invalid formats and display clear error messages with helpful instructions. Response time for validation must be less than 100ms in 95% of cases.

Example validation output: Error: Invalid email format detected
Variable names should follow the pattern: user_input_${field_name} Active API Response Format High Integration API responses shall be formatted as JSON objects. All responses must include these mandatory fields:
  • status - HTTP status indicator
  • data - Response payload
  • timestamp - Request timestamp
Error responses must include an additional error_code field with values from 1000 to 9999. The timestamp shall use ISO 8601 format. Current API version: v2.1.3 Active Performance Benchmarks Medium Performance The application shall handle concurrent users with these performance criteria:
Response time must be under 2seconds for 90% of requests, throughput must support at least 1000requests/second, and uptime must exceed 99.9% availability.
Note: Performance metrics exclude maintenance windows Draft Database Backup System High Data Management Database backups shall be performed automatically every 24hours. Backup files must be stored in encrypted format using AES-256 encryption algorithm.

The system shall retain:
  1. 30 daily backups
  2. 12 monthly backups
  3. 7 yearly backups
Legacy MD5 checksums are no longer supported - use SHA-256 instead. Active User Interface Guidelines Low UI/UX All user interface elements shall follow accessibility standards including WCAG 2.1 AA compliance. Text contrast ratio must be at least 4.5:1 for normal text and 3:1 for large text.

Interactive elements must support:
  • Keyboard navigation using Tab, Enter, and Space
  • Screen reader compatibility
  • Voice control interfaces (future enhancement)
Reference documentation: UI-STANDARDS-001 Active Logging and Monitoring Medium Operations The system shall generate comprehensive logs for all user actions and system events. Log entries must include these fields: 
{
  "timestamp": "2025-09-02T14:30:00Z",
  "user_id": "user123", 
  "action_type": "LOGIN_ATTEMPT",
  "result_status": "SUCCESS"
}
Critical errors shall trigger immediate alerts to administrators within 5minutes of occurrence. Email notifications are deprecated - use webhook alerts instead. Active Mobile Compatibility High Compatibility The application shall be fully responsive and compatible with mobile devices. Supported screen resolutions range from 320px to 1920px width.

Touch interfaces must support gesture navigation:
  • swipe - Navigate between screens
  • pinch-to-zoom - Scale content
  • tap-to-select - Activate elements
  • long-press - Context menus
Mathematical formula for touch sensitivity: sensitivity = pressure × area / time
Tested on iOS 16.0+ and Android 12.0+ Active External Integration Requirements Medium Integration The system shall integrate with external services using REST APIs. All endpoints must be documented at https://api.example.com/docs.

Authentication tokens expire after 1hour and must be refreshed automatically. See integration guide: External API Documentation

Add support for GraphQL endpoints in future release
Configuration file location: /etc/app/config.json Active Security and Compliance Critical Security The application must comply with GDPR, HIPAA, and SOC 2 standards. All sensitive data must be encrypted both in transit and at rest.

Security measures include:
Data encryption using TLS 1.3 for transmission and AES-256-GCM for storage. Session tokens expire after 30minutes of inactivity.
Security vulnerabilities must be patched within 24 hours of discovery

Compliance certifications: ISO 27001, PCI DSS Level 1
Last security audit: March 2025 Active