• Framework: React.js with Next.js
• State Management: Redux / Context API
• Styling: Tailwind CSS
• Build Tool: Webpack
• Package Manager: npm/yarn

• Runtime: Node.js
• Framework: Express.js / Fastify
• Database: PostgreSQL (primary), Redis (caching)
• Message Queue: RabbitMQ / AWS SQS
• Search: Elasticsearch

• Cloud Provider: AWS (primary), with multi-region support
• Container Orchestration: Kubernetes
• Container Registry: Docker
• CDN: Amazon CloudFront
• File Storage: Amazon S3

• Encryption: AES-256 at rest, TLS 1.2+ in transit
• Identity: OAuth 2.0, SAML 2.0, OpenID Connect
• Compliance: SOC 2 Type II, ISO 27001, GDPR
• Monitoring: CloudWatch, Datadog, Sentry

The responsive web interface that users interact with. Built with React.js and Next.js for optimal performance and user experience. Accessible from any modern web browser on desktop or mobile devices.

The entry point for all requests to backend services. Handles request routing, rate limiting, authentication, and response formatting. Provides REST API and GraphQL endpoints.

Microservices architecture for:

• Audit Service: Manage audit projects and workflows
• Evidence Service: Handle evidence storage and retrieval
• Finding Service: Manage findings and observations
• Report Service: Generate and manage audit reports
• User Service: Handle authentication and authorization
• Notification Service: Send emails and in-app notifications

PostgreSQL: Primary relational database for structured data (audits, findings, users, etc.)

Redis: In-memory cache for session management and frequently accessed data

Elasticsearch: Full-text search capability for evidence and documents

Amazon S3: Object storage for evidence files and attachments

RabbitMQ or AWS SQS for asynchronous job processing including:

• Report generation
• Email notifications
• Data imports/exports
• File processing
• Archive operations

Data is organized hierarchically:

• Workspaces: Top-level organizational container
• Projects: Individual audit projects within a workspace
• Procedures: Testing procedures within a project
• Evidence: Supporting documentation for procedures
• Findings: Audit observations and recommendations

• Data encryption at rest (AES-256)
• Data encryption in transit (TLS 1.2+)
• Role-based access control (RBAC)
• Field-level encryption for sensitive data
• Regular security audits and penetration testing
• Compliance with data protection regulations

Data retention policies:

• Active data: Indefinite (user can delete)
• Deleted data: 30-day grace period before permanent deletion
• Backups: 90-day retention
• Audit logs: 2-year retention

SmartHubs is deployed across multiple AWS regions for high availability and disaster recovery:

• Primary region: US East (N. Virginia)
• Secondary regions: EU (Frankfurt), Asia Pacific (Singapore)
• Automatic failover and geographic load balancing
• Data replication across regions for redundancy

The platform is designed to scale automatically:

• Kubernetes auto-scaling based on CPU and memory
• Database connection pooling and optimization
• CDN caching for static assets
• Horizontal scaling of microservices
• Load balancing across availability zones

Comprehensive monitoring and observability:

• Real-time metrics via CloudWatch / Datadog
• Application performance monitoring (APM)
• Distributed tracing for troubleshooting
• Log aggregation and analysis
• Uptime monitoring and alerts

RESTful API endpoints for programmatic access to SmartHubs data and functionality. Full API documentation available to developers.

Multiple authentication methods:

• API Keys for service-to-service communication
• OAuth 2.0 for third-party integrations
• SAML 2.0 and OpenID Connect for enterprise SSO
• JWT tokens for stateless authentication

API rate limiting to ensure fair usage and platform stability:

• Default: 100 requests per minute per user
• Enterprise: Custom rate limits available
• Burst allowance: 150% of limit for peak traffic

• RTO: Recovery Time Objective - 4 hours
• RPO: Recovery Point Objective - 1 hour

• Automated daily backups
• Point-in-time recovery available
• Backup replication across regions
• Regular recovery testing