# Determinization UI Components (Observation State Chip + Uncertainty Indicator)

## Module
Web

## Status
VERIFIED

## Description
Angular UI components for CVE observation state management: "Unknown (auto-tracking)" chip with next review ETA, uncertainty tier visualization, guardrails status/monitoring badges, decay progress indicator, observation details panel, and observation review queue for pending items.

## Implementation Details
- **Feature directory**: `src/Web/StellaOps.Web/src/app/shared/components/determinization/`
- **Components**:
  - `decay-progress` (`src/Web/StellaOps.Web/src/app/shared/components/determinization/decay-progress/decay-progress.component.ts`)
  - `guardrails-badge` (`src/Web/StellaOps.Web/src/app/shared/components/determinization/guardrails-badge/guardrails-badge.component.ts`)
  - `observation-state-chip` (`src/Web/StellaOps.Web/src/app/shared/components/determinization/observation-state-chip/observation-state-chip.component.ts`)
  - `uncertainty-indicator` (`src/Web/StellaOps.Web/src/app/shared/components/determinization/uncertainty-indicator/uncertainty-indicator.component.ts`)
- **Source**: SPRINT_20260106_001_005_FE_determinization_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 component renders correctly with sample data
  - [ ] Verify interactive elements respond to user input
  - [ ] Verify data is fetched and displayed from the correct API endpoints
- **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)

## Verification
- Run: `docs/qa/feature-checks/runs/web/determinization-ui-components/run-001/`
- Tier 0 (source): pass (`tier0-source-check.json`)
- Tier 1 (build/tests): pass (`tier1-build-check.json`)
- Tier 2 (behavior): pass (`tier2-e2e-check.json`)
- Verified on (UTC): 2026-02-10

## Recheck (run-003)
- Date (UTC): 2026-02-11T10:08:09Z
- Status: PASSED (strict Tier 2 UI replay)
- Tier 2 evidence: docs/qa/feature-checks/runs/web/determinization-ui-components/run-003/tier2-ui-check.json
- Notes: Verified via /qa/web-recheck determinization chip/uncertainty/guardrail/decay rendering checks.