Google Docs / Figma-style collaboration awareness - see who's viewing your ontology in real-time!

Presence Indicators

• Live User Avatars
  • Color-coded avatars with user initials
  • Shows up to 5 users with "+N" indicator for additional viewers
  • Hover to see user names and current view
  • "Just you" message when working alone
  • Smooth fade-in animations when users join/leave
• View Tracking
  • See which tab each user is viewing (Graph, List, Hierarchy, etc.)
  • View-specific icons on user avatars
  • View labels under avatars
  • Real-time updates when users switch tabs
• Colored Tab Indicators
  • User-colored dots on tab buttons show who's viewing each tab
  • Shows up to 3 colored dots per tab with "+N" for additional viewers
  • Enhanced tooltips listing all viewer names
  • Visual consistency between avatars and tab indicators

Multi-Provider Authentication Support

• Smart Display Name Resolution
  • Compatible with Entra ID (Azure AD)
  • Supports Google, GitHub, Microsoft OAuth
  • Priority fallback chain for reliable name display
  • Graceful handling of missing name claims

Technical Implementation

• SignalR hub with permission-based access control
• 30-second heartbeat for presence maintenance
• Automatic cleanup on disconnect
• Thread-safe concurrent data structures
• Hash-based consistent color assignment
• Dark mode support throughout

Security

• Authentication required - no anonymous presence
• Permission validation via share system
• Owner and invited users both supported
• PII protection - emails only to authorized users
• Comprehensive audit logging
• Input validation on all user data

New visual identity and improved user experience for power users.

Visual Branding

• New Eidos Logo
  • Modern logo with colorful striped "e" design
  • Updated brand in top navigation bar
  • New favicon for browser tabs and bookmarks
  • Enhanced login page with prominent branding

Power User Features

• Bulk Concept Entry
  • "Save & Add Another" button for rapid concept creation
  • Keyboard shortcut: Ctrl+Enter to save and continue
  • Smart field persistence (keeps category between entries)
  • Auto-focus on name field for seamless workflow
• GitHub-Style Settings Page
  • Standalone settings page with dedicated URL
  • Tab navigation: General, Permissions, Sharing, Danger Zone
  • Mobile-responsive sidebar navigation
  • More organized and spacious interface

Major performance improvements and dashboard count accuracy.

Dashboard Improvements

• Fixed Dashboard Count Display
  • Dashboard now correctly shows concept and relationship counts
  • Implemented denormalized count tracking for O(1) access
  • Counts automatically maintained on create/delete operations
  • No longer shows "0 concepts 0 relationships" for populated ontologies

Performance Enhancements

• Query Optimization
  • Fixed N+1 query in GetCollaboratorsAsync (reduced from 20+ queries to 3)
  • Optimized GetParentConceptsAsync/GetChildConceptsAsync (60-80% latency reduction)
  • Batch query optimization for CloneOntologyAsync (from 5-10s to under 1s)
  • Recursive CTE for GetOntologyDescendantsAsync (eliminates full table scan)
• Permission Service Optimization
  • Uses projection instead of full entity loads (reduced memory footprint)
  • Changed BaseRepository operations to use AsNoTracking()
  • Optimized ExistsAsync to use AnyAsync() instead of FindAsync()
• User Preferences Caching
  • In-memory cache with 5-minute sliding expiration
  • Significant reduction in database queries for frequently accessed preferences
  • Automatic cache invalidation on updates
• Database Optimization
  • Added 7 performance indexes on foreign key columns
  • Improved query execution times across the application

Performance Impact

• API latency reduced by 60-80% for affected operations
• Memory usage reduced by 70-90% for read operations
• Faster page loads and data retrieval
• More responsive user interface

Fine-grained access control with group-based permissions for ontologies.

New Features

• Ontology Permission System
  • Three visibility levels: Private, Group, and Public
  • Three permission levels: View, Edit, and Admin
  • Permission hierarchy with inheritance
  • Public edit toggle for open collaboration
• Group Management UI
  • New Permissions tab in Ontology Settings dialog
  • Add/remove group access with permission levels
  • Change permission levels for existing groups
  • View member counts and grant history
  • Real-time permission updates
• Role-Based Access Control (RBAC)
  • Four user roles: Admin, PowerUser, User, Guest
  • Permission checks at UI and service layers
  • Home page filters by accessible ontologies
  • Ontology view validates edit permissions
• OAuth Improvements
  • Conditional OAuth button rendering (only shows configured providers)
  • Comprehensive error handling in OAuth event handlers
  • Prevents login failures from breaking authentication flow
  • Configuration detection for Google, Microsoft, and GitHub
• Dark Mode Enhancements
  • Fixed Learn page contrast issues
  • Proper badge text colors in dark mode
  • Readable navigation and content sections

Testing

• 32 new comprehensive tests added (157+ total tests)
• OntologyPermissionService integration tests (20+ tests)
• LoginModel OAuth configuration unit tests (12 tests)
• 100% pass rate maintained

Track every change made to your ontologies with complete version history.

New Features

• Version History Panel
  • Timeline view of all changes
  • Filter by entity type (concepts, relationships, properties)
  • Filter by activity type (create, update, delete)
  • Statistics dashboard showing contributors and activity breakdown
  • Before/after snapshots for all changes
• Automatic Activity Recording
  • Tracks all concept and relationship changes
  • Captures complete before/after state
  • Auto-incrementing version numbers
  • User attribution for all changes
• Version Comparison
  • Side-by-side diff view
  • Highlights added, modified, and removed fields
• Revert Capability (foundation - full implementation coming soon)

See who's working on your ontologies and track their contributions.

New Features

• Collaborator Panel
  • View all users and guests with access
  • Permission level badges (View, Can Edit, Full Access)
  • Access statistics (first accessed, last active)
  • Guest user identification
• Edit Statistics
  • Per-user contribution breakdown
  • Counts for concepts, relationships, and properties
  • Created, updated, and deleted tracking
• Activity Timeline
  • Recent activity for each collaborator
  • Chronological list with descriptions
  • Entity names and timestamps

Comprehensive test suite ensuring reliability and quality.

• 125+ automated tests (100% passing) - expanded to 157+ with permission system tests
• Component tests with bUnit
• Service integration tests
• Repository tests with in-memory database
• End-to-end workflow tests

Easy on the eyes, day or night.

• Light and dark mode themes
• Persisted user preference
• Smooth theme transitions
• Color-blind friendly palette
• System theme detection

Work on your ontologies anywhere, on any device.

• Touch-friendly graph editor
• Mobile-optimized controls
• Responsive layouts for all views
• Collapsible sidebars on small screens
• Gesture support (pinch-zoom, pan)

Deployed with enterprise-grade infrastructure and security.

• Secure cloud hosting
• Managed database with automatic backups
• Encrypted secrets management
• Application performance monitoring
• HTTPS-only with TLS 1.2+
• Continuous deployment with GitHub Actions
• Custom domain: https://eidosonto.com

The foundation of Eidos Ontology Builder.

Core Features

• Ontology management (create, edit, delete)
• Concept and relationship management
• Interactive graph visualization
• List and hierarchy views
• TTL export/import
• Template system
• Fork/clone ontologies
• Undo/redo support
• Real-time collaboration
• User authentication (OAuth)
• User preferences