# TraceRTM Domain-Optimized Views Specialization Strategy

**Document Version:** 1.0
**Created:** January 31, 2026
**Status:** Strategic Planning
**Audience:** Frontend Architecture, Product, Engineering Leadership

---

## Executive Summary

TraceRTM currently uses a generic `ItemsTableView` component as the foundation for most project views (CODE, API, DATABASE, DOMAIN, INFRASTRUCTURE, etc.). While this provides consistency, it misses critical opportunities to deliver domain-specific, highly optimized experiences that would dramatically improve user productivity.

This document presents a comprehensive strategy to progressively transform 15+ generic views into specialized, domain-optimized components that leverage view-specific data structures, visualizations, and interactions.

**Key Benefits:**
- **35-50% improved task completion time** for domain-specific workflows
- **3-4x richer insights** through specialized visualizations
- **60% fewer clicks** for common domain operations
- **Complete feature parity** with industry-leading tools in each domain

---

## Current State Analysis

### Generic Views (15 using ItemsTableView)
- **FEATURE** - Generic tree with manual expandable rows
- **CODE** - Generic filtered table (source files)
- **DATABASE** - Generic filtered table (schemas)
- **API** - Generic filtered table (endpoints)
- **DOMAIN** - Generic filtered table (domain objects)
- **INFRASTRUCTURE** - Generic filtered table
- **DATAFLOW** - Generic filtered table
- **SECURITY** - Generic filtered table
- **PERFORMANCE** - Generic filtered table
- **MONITORING** - Generic filtered table
- **JOURNEY** - Generic filtered table
- **CONFIGURATION** - Generic filtered table
- **DEPENDENCY** - Generic filtered table
- **ARCHITECTURE** - Generic filtered table
- **WIREFRAME** - Generic filtered table

### Specialized Views (5 with custom components)
- **TEST-CASES** - TestCaseView with domain-specific UI
- **TEST-RUNS** - TestRunView with execution metrics
- **TEST-SUITES** - TestSuiteView with test organization
- **QA-DASHBOARD** - QADashboardView with metrics & analytics
- **COVERAGE** - CoverageMatrixView with coverage visualization
- **GRAPH** - GraphView with relationship visualization
- **INTEGRATIONS** - IntegrationsView with integration management
- **WEBHOOKS** - WebhookIntegrationsView with webhook management
- **WORKFLOWS** - WorkflowRunsView with execution tracking
- **IMPACT-ANALYSIS** - ImpactAnalysisView with dependency analysis
- **TRACEABILITY** - TraceabilityMatrixView with trace analysis

---

## Domain-Specific View Specifications

### 1. FEATURE View: Epic/Story Hierarchy & Roadmap

**Current State:** Basic collapsible tree (FeatureView.tsx exists but not integrated)

**Target Experience:**
- **Hierarchical Roadmap Timeline** - Visual roadmap with Epic timeline, Feature delivery dates, dependency chains
- **Epic/Feature/Story Tree** - Expandable hierarchy with status visualization
- **Burndown Integration** - Sprint-based burndown charts
- **Dependency Graph** - Feature dependency visualization
- **Release Planning** - Release-based grouping and planning tools

**Key Components:**
```
FeatureView (main container)
├── RoadmapTimeline (timeline visualization)
├── EpicHierarchyTree (tree structure)
├── FeatureDependencyGraph (dependency viz)
├── ReleaseGroupingPanel (release management)
└── BurndownChart (sprint metrics)
```

**Data Requirements:**
- Items with: status, priority, assignee, due_date, parent_id, linked_epics, dependencies
- Sprints/Releases: start_date, end_date, goals
- Historical burn data

**API Endpoints Needed:**
- `GET /api/items?view=feature&hierarchical=true`
- `GET /api/epics/{id}/features` (hierarchical children)
- `GET /api/dependencies/feature/{id}`
- `GET /api/releases?projectId={id}`

**State Management:**
- Expanded nodes (Set<string>)
- Selected Epic/Feature (string)
- Timeline view mode (monthly/quarterly/yearly)
- Dependency filter toggles

---

### 2. API View: Endpoint Explorer & Request Builder

**Current State:** Static API explorer (ApiView.tsx exists with mock data)

**Target Experience:**
- **Interactive Endpoint Explorer** - Browse, filter, search endpoints
- **Request/Response Builder** - Build and test requests inline
- **Schema Browser** - Explore request/response schemas with validation
- **API Documentation** - Auto-generated docs from OpenAPI spec
- **Endpoint Dependency Graph** - Endpoint call chains and dependencies
- **Performance Metrics** - Endpoint latency, error rates, usage stats

**Key Components:**
```
ApiView (main container)
├── EndpointBrowser (filterable list)
├── RequestBuilder (request composer)
├── ResponsePreview (response viewer)
├── SchemaViewer (schema explorer)
├── EndpointDependencyGraph (call chains)
└── MetricsPanel (performance data)
```

**Data Requirements:**
- OpenAPI specification (auto-imported or manually maintained)
- Items with: type: 'api-endpoint', method, path, schemas, documentation
- Request/response examples
- Performance metrics: response_time, error_rate, usage_count

**API Endpoints Needed:**
- `GET /api/openapi/spec`
- `GET /api/items?view=api&includeSchemas=true`
- `POST /api/items/test-request` (execute test requests)
- `GET /api/metrics/endpoints?projectId={id}`

**State Management:**
- Selected endpoint
- Request builder state (headers, params, body)
- Response data
- Filter/search terms

---

### 3. CODE View: File Tree & Code Browser

**Current State:** Generic table of code items

**Target Experience:**
- **File Tree Explorer** - Full project file structure
- **Code Browser** - In-app code viewer with syntax highlighting
- **Class/Function Index** - Searchable index of classes, functions, exported symbols
- **Code Statistics** - Cyclomatic complexity, LOC, test coverage per file
- **Dependency Graph** - Import/require relationships
- **Search Integration** - Search across all code files and definitions

**Key Components:**
```
CodeView (main container)
├── FileTreeExplorer (file hierarchy)
├── CodeBrowser (syntax-highlighted viewer)
├── SymbolIndex (searchable classes/functions)
├── CodeMetrics (complexity, coverage stats)
├── DependencyVisualization (import graph)
└── CodeSearchPanel (full-text search)
```

**Data Requirements:**
- Items with: type: 'code-file' | 'code-class' | 'code-function',
  path, language, lines_of_code, complexity, test_coverage, dependencies
- File content (fetched on-demand from backend/GitHub)
- Symbol definitions and locations

**API Endpoints Needed:**
- `GET /api/items?view=code&hierarchical=true`
- `GET /api/code/file/{id}/content`
- `GET /api/code/symbols?projectId={id}&search={query}`
- `GET /api/metrics/code?projectId={id}&metric=complexity|coverage`

**State Management:**
- Selected file
- Code view position (scroll, active symbol)
- File tree expanded nodes
- Search query and results
- Metrics filter mode

---

### 4. DATABASE View: Schema Browser & ERD

**Current State:** Generic table of database items

**Target Experience:**
- **Entity Relationship Diagram (ERD)** - Visual schema with relationships
- **Table Schema Browser** - Browse tables, columns, constraints, indexes
- **Query Builder** - Build and test queries (read-only for safety)
- **Data Statistics** - Row counts, index performance, constraints
- **Migration Timeline** - Schema version history and migration tracking
- **Relationships Visualization** - Foreign key relationships, cascading rules

**Key Components:**
```
DatabaseView (main container)
├── ERDVisualization (relationship diagram)
├── TableBrowser (searchable table list)
├── ColumnViewer (column details, types, constraints)
├── QueryBuilder (query composition)
├── MigrationTimeline (schema history)
└── ConstraintAnalyzer (relationships, rules)
```

**Data Requirements:**
- Items with: type: 'database-table' | 'database-view' | 'database-procedure',
  schema_name, column_definitions, primary_key, foreign_keys, indexes, constraints
- Column metadata: name, type, nullable, default, constraint_references
- Migration history

**API Endpoints Needed:**
- `GET /api/items?view=database&includeSchema=true`
- `GET /api/database/schema/{id}` (full schema definition)
- `GET /api/database/relationships?tableId={id}`
- `GET /api/database/migrations?projectId={id}`

**State Management:**
- ERD zoom/pan state
- Selected table(s) for focus
- Query builder state
- Timeline view (schema version)
- Filter by schema/pattern

---

### 5. DOMAIN View: Domain Model & Bounded Contexts

**Current State:** Generic table of domain items

**Target Experience:**
- **Domain Model Diagram** - Visual domain with aggregates, entities, value objects
- **Bounded Contexts Explorer** - Explore domain contexts and boundaries
- **Aggregate Browser** - Navigate aggregates, entities, and value objects
- **Domain Event Timeline** - Domain events and their relationships
- **Ubiquitous Language Index** - Glossary of domain terms
- **DDD Metrics** - Context coupling, aggregate complexity, event flow

**Key Components:**
```
DomainView (main container)
├── DomainModelDiagram (visual model)
├── BoundedContextExplorer (context navigator)
├── AggregateViewer (aggregate details)
├── DomainEventTimeline (event flow)
├── UbiquitousLanguageGlossary (term index)
└── DDDMetricsPanel (coupling, complexity)
```

**Data Requirements:**
- Items with: type: 'aggregate' | 'entity' | 'value-object' | 'domain-event',
  bounded_context, name, description, properties, methods, events_published
- Domain Event specs: event_name, triggered_by, consequences
- Glossary terms: term, definition, used_in_contexts

**API Endpoints Needed:**
- `GET /api/items?view=domain&ddd-structure=true`
- `GET /api/domain/bounded-contexts?projectId={id}`
- `GET /api/domain/events?projectId={id}`
- `GET /api/domain/glossary?projectId={id}`

**State Management:**
- Selected bounded context(s)
- Selected aggregate for detail view
- Diagram zoom/pan state
- Filter by context, event type, or search term

---

### 6. WIREFRAME View: Visual Component Gallery

**Current State:** Generic table of wireframe items

**Target Experience:**
- **Component Gallery** - Visual grid of wireframes with thumbnails
- **Interactive Preview** - Click to preview wireframe details
- **Component Hierarchy** - Parent/child component relationships
- **Property Inspector** - View component specifications, constraints
- **State Variants** - Browse different states (hover, active, disabled, etc.)
- **Responsive Mockups** - View different breakpoints/resolutions

**Key Components:**
```
WireframeView (main container)
├── ComponentGallery (thumbnail grid)
├── ComponentPreview (detailed preview)
├── PropertyInspector (specifications)
├── StateVariantBrowser (state variants)
├── ResponsivePreview (breakpoint viewer)
└── DesignTokenBrowser (design system reference)
```

**Data Requirements:**
- Items with: type: 'wireframe' | 'component-design',
  title, thumbnail_url, image_urls (different states),
  properties (specs, dimensions, constraints),
  responsive_breakpoints, variants
- Component hierarchy: parent_component_id

**API Endpoints Needed:**
- `GET /api/items?view=wireframe&includeThumbnails=true`
- `GET /api/wireframe/{id}/assets` (images, variants)
- `GET /api/design-tokens?projectId={id}`

**State Management:**
- Selected wireframe
- Expanded component hierarchy node(s)
- Active variant/state view
- Responsive breakpoint selection
- Gallery view mode (grid size, sorting)

---

### 7. ARCHITECTURE View: C4 Diagrams & Dependency Graphs

**Current State:** Generic table of architecture items

**Target Experience:**
- **C4 Model Visualization** - Context, Container, Component, Code diagrams
- **Dependency Graph** - Module/package dependency visualization
- **Architecture Decision Records (ADRs)** - ADR timeline and status
- **Technology Stack Browser** - Technologies and their relationships
- **Layer Architecture Diagram** - Vertical slice or horizontal layering
- **Risk/Metrics Panel** - Architectural debt, cyclomatic dependencies

**Key Components:**
```
ArchitectureView (main container)
├── C4Visualization (C4 level selector)
├── DependencyGraph (dependency explorer)
├── ADRTimeline (decisions over time)
├── TechStackBrowser (technology catalog)
├── LayerArchitecture (structural view)
└── MetricsPanel (debt, coupling, complexity)
```

**Data Requirements:**
- Items with: type: 'architecture-context' | 'architecture-container' |
  'architecture-component' | 'architecture-code',
  c4_level, contained_items, technologies, dependencies
- ADR data: decision, status, consequences, alternatives
- Technology data: name, version, layer, purpose

**API Endpoints Needed:**
- `GET /api/items?view=architecture&c4-levels=true`
- `GET /api/architecture/c4/{level}?projectId={id}`
- `GET /api/architecture/dependencies?projectId={id}`
- `GET /api/adr?projectId={id}`

**State Management:**
- Selected C4 level
- Focused component/container
- Dependency filter (show all, internal only, external only)
- ADR timeline view
- Technology filter

---

### 8. INFRASTRUCTURE View: Infrastructure & Deployment Topology

**Current State:** Generic table of infrastructure items

**Target Experience:**
- **Infrastructure Topology Diagram** - Servers, services, networks, databases
- **Deployment Environments** - Dev, staging, production with configuration
- **Service Mesh Visualization** - Service-to-service communication
- **Infrastructure Metrics** - CPU, memory, disk, network stats
- **Configuration Browser** - Environment variables, secrets, configs
- **Scaling/HA Configuration** - Load balancing, replication, failover

**Key Components:**
```
InfrastructureView (main container)
├── InfrastructureTopology (visual diagram)
├── EnvironmentBrowser (dev/staging/prod configs)
├── ServiceMeshVisualizer (service communication)
├── MetricsMonitor (resource usage)
├── ConfigurationBrowser (env vars, configs)
└── ScalingConfigurator (HA, replication, LB)
```

**Data Requirements:**
- Items with: type: 'server' | 'service' | 'database' | 'load-balancer' | 'network',
  environment, region, instance_type, configuration, metrics
- Service dependencies and communication protocols
- Configuration data (environment-specific)

**API Endpoints Needed:**
- `GET /api/items?view=infrastructure&topology=true`
- `GET /api/infrastructure/topology?projectId={id}&environment={env}`
- `GET /api/infrastructure/config/{id}`
- `GET /api/metrics/infrastructure?projectId={id}`

**State Management:**
- Selected environment filter
- Focused service/server
- Topology zoom/pan state
- Metrics time range
- Configuration view (sensitive data masking)

---

### 9. DATAFLOW View: Data Pipeline & Stream Processing

**Current State:** Generic table of dataflow items

**Target Experience:**
- **Data Flow Diagram** - Sources → Processing → Destinations
- **Pipeline Browser** - Batch and stream pipelines with transformations
- **Data Schema Evolution** - Schema versions and transformations
- **Processing Metrics** - Throughput, latency, error rates per stage
- **Transformation Rules** - Data transformation definitions
- **SLA Monitoring** - Pipeline SLAs and current performance

**Key Components:**
```
DataflowView (main container)
├── DataFlowDiagram (pipeline visualization)
├── PipelineBrowser (pipeline explorer)
├── TransformationViewer (transformation details)
├── SchemaEvolution (data schema timeline)
├── MetricsMonitor (pipeline performance)
└── SLADashboard (SLA tracking)
```

**Data Requirements:**
- Items with: type: 'data-source' | 'processor' | 'destination',
  data_schema, transformations, dependencies, metrics
- Pipeline specs: sources, stages, destinations, schedule, SLA
- Processing metrics: records_processed, latency, errors, throughput

**API Endpoints Needed:**
- `GET /api/items?view=dataflow&pipelineFlow=true`
- `GET /api/dataflow/pipelines?projectId={id}`
- `GET /api/dataflow/schema/{id}/evolution`
- `GET /api/metrics/dataflow?projectId={id}`

**State Management:**
- Selected pipeline
- Focused stage/processor
- Data flow zoom/pan state
- Time range for metrics
- Schema version selection

---

### 10. SECURITY View: Security Controls & Threat Model

**Current State:** Generic table of security items

**Target Experience:**
- **Security Controls Matrix** - Controls by category, maturity assessment
- **Threat Model Visualization** - STRIDE/similar threat diagrams
- **Vulnerability Dashboard** - Known vulnerabilities and remediation status
- **Authentication/Authorization Flow** - Auth architecture and policies
- **Compliance Matrix** - Compliance mappings (SOC2, GDPR, HIPAA, etc.)
- **Risk Assessment** - Risk heat maps and priority lists

**Key Components:**
```
SecurityView (main container)
├── SecurityControlsMatrix (control catalog)
├── ThreatModelDiagram (threat visualization)
├── VulnerabilityDashboard (vuln tracking)
├── AuthFlowDiagram (auth architecture)
├── ComplianceMatrix (compliance mappings)
└── RiskHeatMap (risk assessment)
```

**Data Requirements:**
- Items with: type: 'security-control' | 'vulnerability' | 'threat' | 'auth-policy',
  security_domain, status, maturity_level, compliance_mappings
- Vulnerability data: CVE, severity, affected_components, remediation
- Threat data: threat_actor, attack_vector, impact, controls

**API Endpoints Needed:**
- `GET /api/items?view=security&securityFramework=true`
- `GET /api/security/threats?projectId={id}`
- `GET /api/security/vulnerabilities?projectId={id}`
- `GET /api/security/compliance?projectId={id}`

**State Management:**
- Selected control/vulnerability
- Security domain filter
- Maturity/severity filter
- Compliance framework selection
- Time-based vulnerability filtering

---

### 11. PERFORMANCE View: Performance Metrics & Optimization

**Current State:** Generic table of performance items

**Target Experience:**
- **Performance Baseline & Trends** - KPI tracking over time
- **Bottleneck Analyzer** - Identify slowest components/queries
- **Performance Budget Tracker** - Budget vs actual performance
- **Optimization Priority List** - Ranked by potential impact
- **Comparison Matrix** - Before/after performance comparisons
- **Alert Dashboard** - Performance SLA violations

**Key Components:**
```
PerformanceView (main container)
├── PerformanceBaseline (KPI dashboard)
├── BottleneckAnalyzer (slowest components)
├── BudgetTracker (budget vs actual)
├── OptimizationPriority (impact ranking)
├── ComparisonMatrix (before/after)
└── AlertDashboard (SLA violations)
```

**Data Requirements:**
- Items with: type: 'performance-metric' | 'optimization-opportunity',
  metric_name, baseline, current_value, budget, trend
- Performance metrics: latency, throughput, resource_usage, error_rate
- Optimization items: component, current_metric, target_metric, potential_impact

**API Endpoints Needed:**
- `GET /api/items?view=performance&metrics=true`
- `GET /api/metrics/performance?projectId={id}&timeRange={range}`
- `GET /api/performance/bottlenecks?projectId={id}`
- `GET /api/performance/optimizations?projectId={id}&sortBy=impact`

**State Management:**
- Time range for trends
- Selected metric/component
- Budget vs actual view mode
- Performance SLA threshold
- Optimization filter (difficulty, impact)

---

### 12. MONITORING View: Observability & Alerting

**Current State:** Generic table of monitoring items

**Target Experience:**
- **Live Metrics Dashboard** - Real-time KPIs and health
- **Alert Configuration UI** - Create, edit, manage alerts
- **Event Timeline** - Recent incidents, deployments, changes
- **Service Health Map** - Health status across services
- **Log Search Integration** - Searchable logs with filtering
- **On-call Schedule & Escalation** - Escalation policies and schedules

**Key Components:**
```
MonitoringView (main container)
├── MetricsDashboard (live metrics)
├── AlertConfigUI (alert management)
├── EventTimeline (incident timeline)
├── ServiceHealthMap (health visualization)
├── LogSearchPanel (log querying)
└── OnCallSchedule (escalation policies)
```

**Data Requirements:**
- Items with: type: 'metric' | 'alert' | 'log-source' | 'event-stream',
  metric_definition, alert_rules, log_indices
- Real-time metrics: name, current_value, unit, status, timestamp
- Alert rules: name, condition, severity, channels, escalation

**API Endpoints Needed:**
- `GET /api/metrics/live?projectId={id}`
- `GET /api/alerts?projectId={id}`
- `POST /api/alerts` (create alert)
- `GET /api/logs?query={q}&projectId={id}`

**State Management:**
- Selected service/metric
- Time range for historical data
- Alert filter (severity, status)
- Log search query
- Auto-refresh toggle and interval

---

### 13. JOURNEY View: User/Business Journey Mapping

**Current State:** Generic table of journey items

**Target Experience:**
- **Journey Timeline** - User journey stages and touchpoints
- **Touchpoint Details** - Interaction details, dependencies
- **Pain Point Heatmap** - Identify problematic stages
- **Stakeholder Impact Map** - Who's affected at each stage
- **Journey Variants** - Happy path vs error scenarios
- **Journey Metrics** - Success rate, drop-off, conversion

**Key Components:**
```
JourneyView (main container)
├── JourneyTimeline (stage visualization)
├── TouchpointExplorer (interaction details)
├── PainPointHeatmap (problem areas)
├── StakeholderImpactMap (affected parties)
├── JourneyVariantViewer (scenario explorer)
└── MetricsDashboard (KPIs)
```

**Data Requirements:**
- Items with: type: 'journey-stage' | 'touchpoint' | 'pain-point' | 'stakeholder-impact',
  stage_sequence, dependencies, impacted_stakeholders, pain_points, metrics
- Touchpoint specs: interaction_type, success_criteria, failure_modes

**API Endpoints Needed:**
- `GET /api/items?view=journey&journeyStages=true`
- `GET /api/journey/{id}/touchpoints`
- `GET /api/journey/{id}/variants`
- `GET /api/journey/{id}/metrics`

**State Management:**
- Selected journey
- Variant selection (happy path, error scenarios)
- Focused stage for detail view
- Pain point filter (severity)
- Metrics time range

---

### 14. CONFIGURATION View: Settings & Environment Configuration

**Current State:** Generic table of configuration items

**Target Experience:**
- **Configuration Browser** - Hierarchical config organization
- **Environment Comparison** - Compare configs across environments
- **Change Tracking** - Configuration change history
- **Validation Rules** - Config validation and constraints
- **Override Inspector** - Track config overrides and their sources
- **Diff Viewer** - Visual config differences

**Key Components:**
```
ConfigurationView (main container)
├── ConfigBrowser (hierarchical explorer)
├── EnvironmentComparison (config diff)
├── ChangeHistory (timeline view)
├── ValidationRuleViewer (validation specs)
├── OverrideInspector (override tracking)
└── DiffViewer (visual differences)
```

**Data Requirements:**
- Items with: type: 'configuration-group' | 'config-property',
  key, value, config_type, environment, validation_rules, overrides
- Configuration hierarchy: parent_id
- Change history: timestamp, old_value, new_value, changed_by

**API Endpoints Needed:**
- `GET /api/items?view=configuration&hierarchical=true`
- `GET /api/config/compare?env1={env1}&env2={env2}&projectId={id}`
- `GET /api/config/{id}/history`
- `GET /api/config/validation?projectId={id}`

**State Management:**
- Selected configuration group
- Environment filter (select 1-2 for comparison)
- View mode (browser vs comparison vs history)
- Search/filter for properties

---

### 15. DEPENDENCY View: Dependency Graph & Analysis

**Current State:** Generic table of dependency items

**Target Experience:**
- **Dependency Graph Visualization** - Visual dependency network
- **Circular Dependency Detector** - Identify cycles
- **Dependency Path Finder** - Find paths between dependencies
- **Version Conflict Analyzer** - Detect version incompatibilities
- **Outdated Dependency Scanner** - Identify stale dependencies
- **License Compliance** - License analysis and compliance

**Key Components:**
```
DependencyView (main container)
├── DependencyGraph (visual network)
├── CircularDependencyDetector (cycle detection)
├── PathFinder (dependency paths)
├── VersionAnalyzer (conflict detection)
├── UpdatednessBrowser (version status)
└── LicenseCompliance (license analysis)
```

**Data Requirements:**
- Items with: type: 'dependency' | 'package',
  name, version, source, licenses, latest_version, vulnerabilities
- Dependency relationships: depends_on, required_by
- Version compatibility: version_range, known_conflicts

**API Endpoints Needed:**
- `GET /api/items?view=dependency&graphStructure=true`
- `GET /api/dependencies/graph?projectId={id}`
- `GET /api/dependencies/cycles?projectId={id}`
- `GET /api/dependencies/vulnerabilities?projectId={id}`

**State Management:**
- Focused dependency node
- Graph zoom/pan state
- Dependency filter (direct, all, cycles only)
- Version update filter
- License filter

---

## Component Architecture & Shared Abstractions

### Shared Component Patterns

#### 1. **Domain Visualization Framework**
```tsx
interface DomainVisualizationProps {
  projectId: string;
  data: DomainData;
  onNodeSelect: (nodeId: string) => void;
  onNodeInteract: (interaction: NodeInteraction) => void;
  zoom?: boolean;
  pan?: boolean;
  highlightRules?: HighlightRule[];
}

// Supports: graphs, hierarchies, timelines, matrices, diagrams
// Auto-handles: zoom, pan, filtering, highlighting, export
```

#### 2. **Metrics Panel**
```tsx
interface MetricsPanelProps {
  metrics: Metric[];
  layout?: 'grid' | 'stacked' | 'sparkline';
  timeRange?: TimeRange;
  compareMode?: boolean;
  onMetricClick?: (metric: Metric) => void;
}
```

#### 3. **Details Inspector**
```tsx
interface DetailsInspectorProps {
  item: DomainItem;
  sections: InspectorSection[];
  readOnly?: boolean;
  onPropertyChange?: (property: string, value: any) => void;
}
```

#### 4. **Search & Filter**
```tsx
interface SearchFilterProps {
  searchPlaceholder: string;
  filters: FilterDefinition[];
  onSearch: (query: string) => void;
  onFilterChange: (filters: FilterState) => void;
  savedSearches?: SavedSearch[];
}
```

#### 5. **Hierarchical Tree/List**
```tsx
interface HierarchicalTreeProps<T> {
  items: T[];
  childrenKey: string;
  renderItem: (item: T, level: number) => ReactNode;
  expandedIds?: Set<string>;
  onToggleExpand?: (id: string) => void;
  virtualized?: boolean;
}
```

#### 6. **Diff Viewer**
```tsx
interface DiffViewerProps {
  oldData: any;
  newData: any;
  fieldMap?: Record<string, string>;
  highlightLevel?: 'field' | 'value' | 'character';
}
```

#### 7. **Timeline**
```tsx
interface TimelineProps {
  events: TimelineEvent[];
  scale?: 'day' | 'week' | 'month' | 'quarter' | 'year';
  onEventClick?: (event: TimelineEvent) => void;
  groupBy?: string;
}
```

#### 8. **Matrix View**
```tsx
interface MatrixViewProps {
  rows: MatrixRow[];
  columns: MatrixColumn[];
  data: MatrixCell[][];
  colorScale?: ColorScaleConfig;
  onCellClick?: (cell: MatrixCell) => void;
}
```

### Data Flow Architecture

```
View Component (e.g., ApiView)
    ↓
useViewData Hook (custom hook per view)
    ├─→ useQuery (fetch items with view-specific filters)
    ├─→ useQuery (fetch view-specific data)
    ├─→ useState (view-specific UI state)
    └─→ useMemo (computed/aggregated data)
    ↓
Visualization Components
    ├─→ Shared components (DomainVisualization, MetricsPanel, etc.)
    ├─→ View-specific components (ApiSchemaViewer, ERDDiagram, etc.)
    └─→ Domain components (from @tracertm/ui)
    ↓
State Management
    ├─→ URL search params (viewType, filters, selection)
    ├─→ Local component state (zoom, pan, expanded)
    └─→ Global store (if cross-view communication needed)
```

### Performance Optimizations

1. **Code Splitting by View**
   - Each view lazily loaded (already implemented)
   - Heavy visualization libs (elkjs, cytoscape) lazy loaded

2. **Data Virtualization**
   - Large lists virtualized (existing pattern from ItemsTableView)
   - Graph nodes virtualized for massive graphs

3. **Memoization Strategy**
   ```tsx
   // Memoize expensive computations
   const computedData = useMemo(() => {
     return processData(rawData);
   }, [rawData]);

   // Memoize sub-components
   const VisualizationComponent = memo(VisualizationImpl, (prev, next) => {
     return prev.data === next.data && prev.filters === next.filters;
   });
   ```

4. **Caching**
   - Use existing GraphCache store for relationship data
   - Implement view-specific caches for computed metrics
   - Cache visualization computations (layout, zoom levels)

5. **Progressive Loading**
   - Load overview first, details on demand
   - Fetch metrics asynchronously while UI loads
   - Stream large datasets in chunks

---

## Implementation Phases

### Phase 1: High-Value Views (6-8 weeks)

**Tier 1 - Massive User Impact:**
1. **FEATURE View** (Weeks 1-2)
   - Epic/Feature/Story hierarchy with timeline
   - Priority: Highest (most-used view for planners)
   - Effort: 80 hours (shared hierarchy component)
   - Dependencies: None

2. **TEST-CASES View Enhancement** (Weeks 1-2)
   - Already exists, add advanced filtering, batch operations
   - Priority: High (QA critical path)
   - Effort: 40 hours
   - Dependencies: None

3. **API View** (Weeks 2-3)
   - Endpoint explorer with schema browser
   - Priority: High (developer productivity)
   - Effort: 100 hours (request builder complexity)
   - Dependencies: OpenAPI spec, request testing infrastructure

4. **CODE View** (Weeks 3-4)
   - File tree + code browser + symbol index
   - Priority: High (developer navigation)
   - Effort: 120 hours (LSP integration, code parsing)
   - Dependencies: GitHub API, code indexing

5. **DATABASE View** (Weeks 4-6)
   - ERD + table browser + query builder
   - Priority: High (DBA/architect workflows)
   - Effort: 140 hours (ERD layout complexity)
   - Dependencies: Database introspection API, Cytoscape.js

6. **DOMAIN View** (Weeks 6-7)
   - Domain model diagram + bounded contexts
   - Priority: Medium (domain-driven teams)
   - Effort: 110 hours (DDD modeling complexity)
   - Dependencies: Domain specification backend

7. **QA-DASHBOARD View Enhancement** (Weeks 7-8)
   - Already exists, add advanced trend analysis
   - Priority: High (QA metrics critical)
   - Effort: 50 hours
   - Dependencies: Metrics API

**Phase 1 Total: ~640 hours = 16 weeks of 1 developer**

**Skills Required:**
- React/TypeScript expert (primary)
- Visualization expert (Cytoscape, ELK, D3) - 20% time
- Backend API design - 10% time

**Success Metrics:**
- 5+ views fully specialized
- 30% improvement in task completion time for FEATURE, CODE, API views
- User satisfaction increase of 40%+

---

### Phase 2: Medium-Value Views (4-6 weeks)

**Tier 2 - Important Capabilities:**
1. **ARCHITECTURE View** (Weeks 1-2)
   - C4 diagrams + dependency graphs
   - Effort: 100 hours
   - Dependencies: C4 visualization library, ADR backend

2. **INFRASTRUCTURE View** (Weeks 2-3)
   - Topology diagram + environment configs
   - Effort: 90 hours
   - Dependencies: Infrastructure API, topology rendering

3. **SECURITY View** (Weeks 3-4)
   - Controls matrix + threat model + vulnerability dashboard
   - Effort: 110 hours
   - Dependencies: Vulnerability data source (OSV, GitHub), STRIDE modeling

4. **DATAFLOW View** (Weeks 4-5)
   - Pipeline visualization + schema evolution
   - Effort: 95 hours
   - Dependencies: Data catalog API, schema versioning

5. **WIREFRAME View** (Weeks 5-6)
   - Component gallery + responsive previews
   - Effort: 80 hours
   - Dependencies: Asset storage, figma/design integration

**Phase 2 Total: ~475 hours = 12 weeks of 1 developer**

**Skills Required:**
- React/TypeScript expert (primary)
- Domain-specific experts (security, infra) - consulting
- Visualization expert - 20% time

**Success Metrics:**
- All Phase 1 views maintained and optimized
- 5 new specialized views
- 25% improvement in domain-specific workflows

---

### Phase 3: Nice-to-Have Views (3-4 weeks)

**Tier 3 - Enhancing Workflows:**
1. **PERFORMANCE View** (Weeks 1-1.5)
   - Metrics dashboard + bottleneck analyzer
   - Effort: 70 hours
   - Dependencies: Performance metrics API

2. **MONITORING View** (Weeks 1.5-2.5)
   - Live metrics + alerts + event timeline
   - Effort: 85 hours
   - Dependencies: Metrics streaming (WebSocket), alert management API

3. **JOURNEY View** (Weeks 2.5-3.5)
   - Journey timeline + pain point heatmap
   - Effort: 80 hours
   - Dependencies: Journey mapping tools integration

4. **CONFIGURATION View** (Weeks 3-3.5)
   - Hierarchical browser + environment comparison
   - Effort: 60 hours
   - Dependencies: Config management API

5. **DEPENDENCY View** (Weeks 3.5-4)
   - Dependency graph + cycle detector
   - Effort: 70 hours
   - Dependencies: Dependency analysis tools (npm audit, cargo audit)

**Phase 3 Total: ~365 hours = 9 weeks of 1 developer**

---

## Technical Patterns & Implementation Guidelines

### Pattern 1: View Data Hook

```tsx
// Example: useApiViewData.ts
interface ApiViewDataState {
  endpoints: ApiEndpoint[];
  selectedEndpoint: ApiEndpoint | null;
  filters: ApiFilters;
  requestBuilder: RequestBuilderState;
  isLoading: boolean;
  error: Error | null;
}

export function useApiViewData(projectId: string): ApiViewDataState {
  const [filters, setFilters] = useState<ApiFilters>({});
  const [selectedEndpoint, setSelectedEndpoint] = useState<ApiEndpoint | null>(null);

  // Fetch OpenAPI spec
  const { data: spec, isLoading: specLoading } = useQuery({
    queryKey: ['openapi-spec', projectId],
    queryFn: () => api.getOpenApiSpec(projectId),
  });

  // Compute endpoints from spec
  const endpoints = useMemo(() => {
    if (!spec) return [];
    return spec.endpoints.filter(endpoint =>
      matchesFilters(endpoint, filters)
    );
  }, [spec, filters]);

  return {
    endpoints,
    selectedEndpoint,
    filters,
    requestBuilder: {},
    isLoading: specLoading,
    error: null,
  };
}
```

### Pattern 2: View-Specific Components

```tsx
// Example: ApiView.tsx structure
import { useApiViewData } from '@/hooks/useApiViewData';
import { EndpointBrowser } from './components/EndpointBrowser';
import { RequestBuilder } from './components/RequestBuilder';

export function ApiView({ projectId }: { projectId: string }) {
  const {
    endpoints,
    selectedEndpoint,
    filters,
    isLoading,
  } = useApiViewData(projectId);

  return (
    <div className="grid grid-cols-3 gap-4">
      <EndpointBrowser
        endpoints={endpoints}
        selectedId={selectedEndpoint?.id}
        onSelect={setSelectedEndpoint}
      />
      <RequestBuilder endpoint={selectedEndpoint} />
      <ResponsePreview endpoint={selectedEndpoint} />
    </div>
  );
}
```

### Pattern 3: Backend API Expansion

**Existing APIs to enhance:**
```
GET /api/items?view={viewType}&hierarchical=true
GET /api/items?view={viewType}&includeSchema=true
GET /api/items?view={viewType}&includeMetrics=true
```

**New view-specific endpoints:**
```
GET /api/{view-domain}/graph?projectId={id}
GET /api/{view-domain}/metrics?projectId={id}&timeRange={range}
GET /api/{view-domain}/{id}/relationships
GET /api/{view-domain}/{id}/history
```

### Pattern 4: State Management

**Use URL for:**
- Current view type (viewType param)
- Selected item (itemId param)
- Major filters (filter params)

**Use React state for:**
- Transient UI state (zoom, pan, expanded nodes)
- Form state (request builder)
- View preferences (layout mode, metrics timerange)

**Use global store for:**
- Cross-view communication (rare)
- Shared user preferences
- Cached heavy computations (graph layouts)

---

## Effort Estimates by Category

### View Implementation
| View | Complexity | Hours | Weeks | Skills |
|------|-----------|-------|-------|--------|
| FEATURE | Medium | 80 | 2 | React, UI |
| API | High | 100 | 2.5 | React, HTTP, schema parsing |
| CODE | Very High | 120 | 3 | React, LSP, code parsing |
| DATABASE | Very High | 140 | 3.5 | React, Cytoscape, SQL |
| DOMAIN | High | 110 | 2.75 | React, DDD, visualization |
| ARCHITECTURE | High | 100 | 2.5 | React, C4, Cytoscape |
| INFRASTRUCTURE | High | 90 | 2.25 | React, topology, visualization |
| SECURITY | High | 110 | 2.75 | React, domain knowledge |
| DATAFLOW | High | 95 | 2.4 | React, DAG visualization |
| WIREFRAME | Medium | 80 | 2 | React, image handling |
| PERFORMANCE | Medium | 70 | 1.75 | React, charts |
| MONITORING | Medium | 85 | 2.1 | React, WebSocket, real-time |
| JOURNEY | Medium | 80 | 2 | React, UX flows |
| CONFIGURATION | Low | 60 | 1.5 | React, diffs |
| DEPENDENCY | Medium | 70 | 1.75 | React, graph theory |

**Total: ~1,370 hours = 34 weeks of 1 FTE**

### Component Development
| Component | Hours | Reusable Across Views |
|-----------|-------|----------------------|
| Shared Visualization Framework | 120 | All views |
| Search/Filter Component | 40 | All views |
| Hierarchical Tree | 50 | FEATURE, DOMAIN, CONFIG, DEPENDENCY |
| Diff Viewer | 30 | CONFIG, most views |
| Timeline | 40 | JOURNEY, ARCHITECTURE, many views |
| Matrix View | 35 | SECURITY, PERFORMANCE, DEPENDENCY |
| Metrics Panel | 40 | Most views with metrics |
| Details Inspector | 50 | All views |

**Total: ~405 hours = 10 weeks (shared work)**

### Backend API Development
| Endpoint Set | Hours | Views Using |
|--------------|-------|------------|
| Relationship APIs | 60 | All views |
| Metrics APIs | 80 | PERFORMANCE, MONITORING, QA, etc. |
| Visualization data APIs | 100 | CODE, API, DATABASE, ARCHITECTURE, etc. |
| History/temporal APIs | 50 | CONFIG, PERFORMANCE |
| Search/index APIs | 60 | CODE, API, most views |

**Total: ~350 hours = 9 weeks (backend team)**

### Testing & QA
| Type | Hours | Notes |
|------|-------|-------|
| Component unit tests | 200 | 70% coverage per view |
| Integration tests | 150 | E2E flows per view |
| Visual regression tests | 100 | Chromatic/similar |
| Performance tests | 80 | Virtualization, loading |
| Accessibility tests | 100 | WCAG compliance |

**Total: ~630 hours = 16 weeks (QA + frontend)**

---

## Risk Assessment & Mitigation

### Technical Risks

| Risk | Probability | Impact | Mitigation |
|------|------------|--------|-----------|
| Visualization library performance | Medium | High | Early prototyping, profiling with real data, fallback rendering modes |
| Large dataset handling | High | High | Implement pagination/virtualization early, load test with 10k+ items |
| Browser memory constraints | Medium | High | Monitor memory usage, implement lazy loading, add garbage collection |
| Cross-browser compatibility | Low | Medium | Test on Chrome, Firefox, Safari from start; use standard APIs |
| Real-time data synchronization | Medium | Medium | Use existing WebSocket infrastructure; test with concurrent updates |

### Organizational Risks

| Risk | Probability | Impact | Mitigation |
|------|------------|--------|-----------|
| Scope creep | High | High | Strict phase gates; prioritize MVP per view; document out-of-scope |
| Timeline slippage | High | High | 20% buffer in estimates; weekly progress reviews; track velocity |
| Backend API delays | High | High | Parallel development; mock APIs early; define contracts first |
| Design/UX conflicts | Medium | Medium | Involve designers early; create patterns before implementation; review often |
| Maintenance burden | Medium | Medium | Comprehensive documentation; shared component library; refactoring schedule |

### Dependency Risks

| Dependency | Risk | Mitigation |
|------------|------|-----------|
| Cytoscape.js | Performance on large graphs | Profile early; consider alternatives (Vis.js, xyflow) |
| ELK.js | Bundle size | Tree-shake, lazy load, consider server-side layout |
| GitHub API | Rate limiting on CODE view | Implement smart caching, batch requests |
| OpenAPI spec parsing | Complex specs | Use json-schema-to-typescript, comprehensive tests |

---

## Success Metrics & Validation

### User-Facing Metrics

| Metric | Target | Measurement |
|--------|--------|-------------|
| Task completion time improvement | 35-50% | Benchmark common tasks before/after |
| User satisfaction (FEATURE view) | 4.5+/5 | NPS survey, usage analytics |
| API view adoption | 70%+ of developers | Feature flag analytics, session tracking |
| Code view daily users | 50%+ of engineers | Login-based tracking, feature flags |
| Feature view sprint planning time | -40% | Time tracking on sprint planning sessions |

### Technical Metrics

| Metric | Target | Measurement |
|--------|--------|-------------|
| Page load time (avg) | <2s | Real User Monitoring (RUM) |
| Time to Interactive | <3s | Web Vitals tracking |
| Core Web Vitals (CLS) | <0.1 | Web Vitals monitoring |
| Component test coverage | 70%+ | Jest/Vitest reports |
| Accessibility (WCAG AA) | 100% | axe-core, automated testing |
| Performance budget | <500KB JS per view | Bundle analysis on build |

### Business Metrics

| Metric | Target | Measurement |
|--------|--------|-------------|
| Product NPS improvement | +10 points | Quarterly NPS surveys |
| Feature adoption (per view) | 60%+ | Analytics dashboard |
| Support tickets (view-related) | -30% | Support system analysis |
| Churn rate | -5% | Subscription analytics |
| Expansion revenue (upsells) | +20% | Sales pipeline tracking |

---

## Documentation & Knowledge Transfer

### Documentation to Create

1. **View Architecture Guide** (20 pages)
   - Overview of each view's purpose, design, and implementation
   - Data flow diagrams
   - Component composition patterns

2. **Component Library Reference** (15 pages)
   - API reference for shared components
   - Usage examples
   - Customization guides

3. **Backend API Reference** (20 pages)
   - New endpoints for view-specific features
   - Data schemas and examples
   - Performance and caching guidelines

4. **Customization & Extension Guide** (15 pages)
   - How to customize views for specific use cases
   - How to create new view types
   - Plugin architecture (if applicable)

5. **Performance & Optimization Guide** (10 pages)
   - Common performance pitfalls
   - Profiling and monitoring
   - Optimization techniques

### Training & Knowledge Transfer

1. **Lunch & Learn Sessions** (4 sessions)
   - Overview of new views and capabilities
   - Use case walkthroughs
   - Best practices

2. **Developer Onboarding** (updated)
   - Add view development guidelines
   - Link to component library
   - Common patterns and anti-patterns

3. **Video Tutorials** (per major view)
   - 5-10 minute introduction videos
   - Common workflows demonstrated
   - Tips and tricks

---

## Implementation Checklist

### Pre-Implementation
- [ ] Stakeholder alignment on prioritization
- [ ] Design review and approval (all views)
- [ ] Backend API contracts finalized
- [ ] Shared component library designed
- [ ] Performance budgets established
- [ ] Accessibility requirements documented
- [ ] Testing strategy approved
- [ ] Rollout/feature flag strategy decided

### Per-View Implementation
- [ ] Detailed technical design document
- [ ] Component sketches and wireframes
- [ ] Backend API implementation
- [ ] Frontend implementation (components, hooks, routing)
- [ ] Unit tests (70%+ coverage)
- [ ] Integration tests (main workflows)
- [ ] Visual regression tests
- [ ] Accessibility audit (axe-core)
- [ ] Performance profiling and optimization
- [ ] Documentation
- [ ] QA sign-off
- [ ] Rollout with feature flags
- [ ] Monitor metrics post-launch

### Post-Implementation
- [ ] Gather user feedback (surveys, usage data)
- [ ] Optimize based on actual usage patterns
- [ ] Document lessons learned
- [ ] Refactor shared code (if patterns emerge)
- [ ] Deprecate old generic view (after transition)

---

## Next Steps & Recommendations

### Immediate Actions (This Week)
1. **Validate Prioritization** - Confirm FEATURE, API, CODE, DATABASE are Phase 1
2. **Design Review** - Get design team approval on FEATURE and API mockups
3. **Backend Planning** - Identify which APIs can be reused vs. need new development
4. **Team Formation** - Assign lead engineer, design lead, backend lead

### Week 1-2 Actions
1. **Shared Component Design** - Finalize visualization framework, tree component, metrics panel
2. **FEATURE View Prototype** - Build quick prototype to validate approach
3. **Backend API Mockups** - Create API stubs with sample data
4. **Test Infrastructure** - Set up visual regression testing, performance monitoring

### Success Factor: Start Small, Learn Fast
- **Recommendation:** Implement FEATURE view first (moderate complexity, highest ROI)
- Use learnings to inform API and CODE views (higher complexity)
- Database view benefits from learnings about complex visualizations
- By the time you reach Phase 2, team will have mature patterns

---

## Conclusion

Transforming TraceRTM's generic item views into specialized, domain-optimized experiences represents a significant opportunity to dramatically improve user productivity and satisfaction. The phased approach balances ambition with pragmatism, starting with highest-impact views and progressively adding more specialized capabilities.

The estimated 34-week effort for a single dedicated engineer (split across 3 phases) is substantial but justified by the magnitude of user impact. A team of 2-3 engineers could compress this to 12-16 weeks.

The key to success is:
1. Strong shared component foundation (reusable across views)
2. Parallel backend API development
3. Early user feedback and iteration
4. Systematic testing and documentation
5. Realistic scheduling with buffers for unknowns

**Recommendation:** Proceed with Phase 1 immediately, aiming for FEATURE view complete within 4 weeks to validate approach and build team confidence.

