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git.stella-ops.org/docs/features/unchecked/web/evidence-provenance-visualization-component.md

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# Evidence Provenance Visualization Component
## Module
Web
## Status
IMPLEMENTED
## Description
Interactive evidence provenance chain visualization showing the path: finding -> advisory -> VEX -> policy -> attestation. Part of the evidence-export feature module with routing integration.
## Implementation Details
- **Feature directory**: `src/Web/StellaOps.Web/src/app/shared/components/evidence-checklist/`
- **Components**:
- `evidence-checklist` (`src/Web/StellaOps.Web/src/app/shared/components/evidence-checklist/evidence-checklist.component.ts`)
- **Source**: SPRINT_20251229_016_FE_evidence_export_replay_ui.md
## E2E Test Plan
- **Setup**:
- [ ] Log in with a user that has appropriate permissions
- [ ] Navigate to the relevant page/section where this feature appears
- [ ] Ensure test data exists (scanned artifacts, SBOM data, or seed data as needed)
- **Core verification**:
- [ ] Verify the visualization renders correctly with sample data
- [ ] Verify interactive elements (hover tooltips, click-to-drill-down) work
- [ ] Verify the visualization handles empty/minimal data gracefully
- **Edge cases**:
- [ ] Verify graceful handling when backend API is unavailable (error state)
- [ ] Verify responsive layout at different viewport sizes
- [ ] Verify accessibility (keyboard navigation, screen reader labels, ARIA attributes)