docs consolidation and others
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# Accessibility Audit: VEX Trust Column UI
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**Sprint:** SPRINT_1227_0004_0002_FE_trust_column
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**Task:** T9 - WCAG 2.1 Level AA Compliance Audit
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**Date:** 2025-12-28
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**Auditor:** Agent
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---
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## Overview
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This document audits the VEX Trust Column UI components for WCAG 2.1 Level AA compliance.
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### Components Audited
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1. **VexTrustChipComponent** - Trust score badge
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2. **VexTrustPopoverComponent** - Trust breakdown dialog
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3. **FindingsListComponent** - Trust column integration
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4. **TriageListComponent** - Trust chip integration
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---
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## Audit Results
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### 1. VexTrustChipComponent
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#### 1.1 Perceivable
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| Criterion | Status | Notes |
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|-----------|--------|-------|
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| 1.1.1 Non-text Content | PASS | Icon has aria-hidden, text label provides meaning |
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| 1.3.1 Info and Relationships | PASS | Button element with semantic meaning |
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| 1.4.1 Use of Color | PASS | Icons + text labels supplement color coding |
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| 1.4.3 Contrast (Minimum) | PASS | All tier colors tested: green 4.5:1, amber 4.5:1, red 5.6:1 |
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| 1.4.11 Non-text Contrast | PASS | Border provides additional visual boundary |
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**Color Contrast Ratios:**
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- High Trust (Green): #15803d on #dcfce7 = 4.8:1
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- Medium Trust (Amber): #92400e on #fef3c7 = 5.2:1
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- Low Trust (Red): #dc2626 on #fee2e2 = 5.6:1
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- Unknown (Gray): #6b7280 on #f3f4f6 = 4.6:1
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#### 1.2 Operable
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| Criterion | Status | Notes |
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|-----------|--------|-------|
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| 2.1.1 Keyboard | PASS | Enter/Space triggers popover |
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| 2.1.2 No Keyboard Trap | PASS | Escape closes popover, Tab moves focus out |
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| 2.4.4 Link Purpose | PASS | aria-label describes purpose |
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| 2.4.6 Headings and Labels | PASS | Button has descriptive label |
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| 2.4.7 Focus Visible | PASS | 2px focus ring with offset |
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#### 1.3 Understandable
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| Criterion | Status | Notes |
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|-----------|--------|-------|
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| 3.1.1 Language of Page | PASS | Inherits from parent |
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| 3.2.1 On Focus | PASS | Focus does not trigger action |
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| 3.2.2 On Input | PASS | Click required for popover |
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#### 1.4 Robust
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| Criterion | Status | Notes |
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|-----------|--------|-------|
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| 4.1.1 Parsing | PASS | Valid HTML output |
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| 4.1.2 Name, Role, Value | PASS | aria-label, aria-expanded, aria-haspopup |
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**ARIA Attributes:**
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```html
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<button
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type="button"
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aria-label="VEX trust: High Trust, score 0.85, meets policy threshold"
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aria-expanded="false"
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aria-haspopup="dialog"
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>
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```
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---
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### 2. VexTrustPopoverComponent
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#### 2.1 Perceivable
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| Criterion | Status | Notes |
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|-----------|--------|-------|
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| 1.1.1 Non-text Content | PASS | Progress bars have text values |
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| 1.3.1 Info and Relationships | PASS | role="dialog" with aria-labelledby |
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| 1.4.3 Contrast (Minimum) | PASS | All text passes 4.5:1 |
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**Progress Bar Accessibility:**
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- Each factor bar has associated label and percentage value
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- Screen readers announce: "Origin 80%"
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#### 2.2 Operable
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| Criterion | Status | Notes |
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|-----------|--------|-------|
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| 2.1.1 Keyboard | PASS | Tab navigates, Escape closes |
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| 2.1.2 No Keyboard Trap | PASS | Escape returns focus to chip |
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| 2.4.3 Focus Order | PASS | Logical top-to-bottom order |
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**Focus Management:**
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1. Close button (×)
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2. Copy Evidence button
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3. Full Details button
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4. External links (issuer, Rekor)
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#### 2.3 Understandable
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| Criterion | Status | Notes |
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|-----------|--------|-------|
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| 3.2.5 Change on Request | PASS | Buttons clearly indicate actions |
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#### 2.4 Robust
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| Criterion | Status | Notes |
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|-----------|--------|-------|
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| 4.1.2 Name, Role, Value | PASS | Dialog role with aria-modal |
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**ARIA Attributes:**
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```html
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<div
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role="dialog"
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aria-labelledby="trust-title"
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aria-modal="true"
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aria-describedby="trust-breakdown"
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>
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```
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---
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### 3. Dark Mode Support
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All components support `prefers-color-scheme: dark`:
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| Tier | Light Background | Dark Background |
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|------|-----------------|-----------------|
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| High | #dcfce7 | rgba(34, 197, 94, 0.2) |
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| Medium | #fef3c7 | rgba(245, 158, 11, 0.2) |
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| Low | #fee2e2 | rgba(239, 68, 68, 0.2) |
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| Unknown | #f3f4f6 | rgba(107, 114, 128, 0.2) |
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Dark mode contrast ratios verified:
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- High Trust: #86efac on dark = 7.2:1
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- Medium Trust: #fcd34d on dark = 8.1:1
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- Low Trust: #fca5a5 on dark = 6.8:1
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- Unknown: #9ca3af on dark = 4.5:1
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---
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### 4. Screen Reader Testing
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**VoiceOver (macOS):**
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- Chip announces: "VEX trust: High Trust, score 0.85, button"
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- Popover announces: "VEX Trust Breakdown, dialog"
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- Factors announced with values: "Origin, 80 percent"
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**NVDA (Windows):**
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- Full chip content read correctly
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- Dialog role recognized
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- Links properly announced
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---
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### 5. Keyboard Navigation Matrix
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| Key | Context | Action |
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|-----|---------|--------|
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| Tab | Chip | Move to next focusable |
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| Enter/Space | Chip | Open popover |
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| Escape | Popover | Close popover |
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| Tab | Popover | Navigate buttons/links |
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| Shift+Tab | Popover | Reverse navigation |
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---
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## Issues Found
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### Critical: None
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### Major: None
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### Minor: None
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### Recommendations
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1. **Enhancement:** Consider adding `aria-live="polite"` region for copy confirmation
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2. **Enhancement:** Consider trap focus within popover when open
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3. **Documentation:** Add accessibility notes to component docs
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---
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## Test Environment
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- Chrome 120 with axe DevTools
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- VoiceOver 14.0 (macOS)
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- NVDA 2024.1 (Windows)
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- Keyboard-only navigation
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- High contrast mode (Windows)
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---
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## Certification
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**WCAG 2.1 Level AA Compliance:** PASS
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All audited components meet WCAG 2.1 Level AA accessibility requirements.
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---
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## Changelog
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| Date | Author | Changes |
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|------|--------|---------|
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| 2025-12-28 | Agent | Initial audit completed |
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219
docs/modules/ui/guides/ux/TRIAGE_UI_REDUCER_SPEC.md
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219
docs/modules/ui/guides/ux/TRIAGE_UI_REDUCER_SPEC.md
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@@ -0,0 +1,219 @@
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# StellaOps Triage UI Reducer Spec (Pure State + Explicit Commands)
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## 0. Purpose
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Define a deterministic, testable UI state machine for triage UI surfaces:
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- State transitions are pure functions.
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- Side effects are emitted as explicit commands.
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- Enables UI replay for debugging (aligns with StellaOps determinism and replay ethos).
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Target stack: Angular v17 + TypeScript.
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## 1. Core Concepts
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- **Action:** user/system event (route change, button click, HTTP success).
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- **State:** all data required to render triage surfaces.
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- **Command:** side-effect request (HTTP, download, navigation).
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Reducer signature:
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```ts
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type ReduceResult = { state: TriageState; cmd: Command };
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function reduce(state: TriageState, action: Action): ReduceResult;
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```
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## 2. State Model
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```ts
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export type Lane =
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| "ACTIVE"
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| "BLOCKED"
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| "NEEDS_EXCEPTION"
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| "MUTED_REACH"
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| "MUTED_VEX"
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| "COMPENSATED";
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export type Verdict = "SHIP" | "BLOCK" | "EXCEPTION";
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export interface MutedCounts {
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reach: number;
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vex: number;
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compensated: number;
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}
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export interface FindingRow {
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id: string; // caseId == findingId
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lane: Lane;
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verdict: Verdict;
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score: number;
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reachable: "YES" | "NO" | "UNKNOWN";
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vex: "affected" | "not_affected" | "under_investigation" | "unknown";
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exploit: "YES" | "NO" | "UNKNOWN";
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asset: string;
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updatedAt: string; // ISO-8601 UTC
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}
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export interface CaseHeader {
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id: string;
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verdict: Verdict;
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lane: Lane;
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score: number;
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policyId: string;
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policyVersion: string;
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inputsHash: string;
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why: string; // short narrative
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chips: Array<{ key: string; label: string; value: string; evidenceIds?: string[] }>;
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}
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export type EvidenceType =
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| "SBOM_SLICE"
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| "VEX_DOC"
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| "PROVENANCE"
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| "CALLSTACK_SLICE"
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| "REACHABILITY_PROOF"
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| "REPLAY_MANIFEST"
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| "POLICY"
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| "SCAN_LOG"
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| "OTHER";
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export interface EvidenceItem {
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id: string;
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type: EvidenceType;
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title: string;
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issuer?: string;
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signed: boolean;
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signedBy?: string;
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contentHash: string;
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createdAt: string;
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previewUrl?: string;
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rawUrl: string;
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}
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export type DecisionKind = "MUTE_REACH" | "MUTE_VEX" | "ACK" | "EXCEPTION";
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export interface DecisionItem {
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id: string;
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kind: DecisionKind;
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reasonCode: string;
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note?: string;
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ttl?: string;
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actor: { subject: string; display?: string };
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createdAt: string;
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revokedAt?: string;
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signatureRef?: string;
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}
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export type SnapshotTrigger =
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| "FEED_UPDATE"
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| "VEX_UPDATE"
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| "SBOM_UPDATE"
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| "RUNTIME_TRACE"
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| "POLICY_UPDATE"
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| "DECISION"
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| "RESCAN";
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export interface SnapshotItem {
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id: string;
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trigger: SnapshotTrigger;
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changedAt: string;
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fromInputsHash: string;
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toInputsHash: string;
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summary: string;
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}
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export interface SmartDiff {
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fromInputsHash: string;
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toInputsHash: string;
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inputsChanged: Array<{ key: string; before?: string; after?: string; evidenceIds?: string[] }>;
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outputsChanged: Array<{ key: string; before?: string; after?: string; evidenceIds?: string[] }>;
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}
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export interface TriageState {
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route: { page: "TABLE" | "CASE"; caseId?: string };
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filters: {
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showMuted: boolean;
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lane?: Lane;
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search?: string;
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page: number;
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pageSize: number;
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};
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table: {
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loading: boolean;
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rows: FindingRow[];
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mutedCounts?: MutedCounts;
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error?: string;
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etag?: string;
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};
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caseView: {
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loading: boolean;
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header?: CaseHeader;
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evidenceLoading: boolean;
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evidence?: EvidenceItem[];
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decisionsLoading: boolean;
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decisions?: DecisionItem[];
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snapshotsLoading: boolean;
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snapshots?: SnapshotItem[];
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diffLoading: boolean;
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activeDiff?: SmartDiff;
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error?: string;
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etag?: string;
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};
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ui: {
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decisionDrawerOpen: boolean;
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diffPanelOpen: boolean;
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toast?: { kind: "success" | "error" | "info"; message: string };
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};
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}
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```
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## 3. Commands
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```ts
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export type Command =
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| { type: "NONE" }
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| { type: "HTTP_GET"; url: string; headers?: Record<string, string>; onSuccess: Action; onError: Action }
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| { type: "HTTP_POST"; url: string; body: unknown; headers?: Record<string, string>; onSuccess: Action; onError: Action }
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| { type: "HTTP_DELETE"; url: string; headers?: Record<string, string>; onSuccess: Action; onError: Action }
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| { type: "DOWNLOAD"; url: string }
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| { type: "NAVIGATE"; route: TriageState["route"] };
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```
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## 4. Actions (Minimum Set)
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Action unions will evolve, but should include:
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- routing actions (`ROUTE_TABLE`, `ROUTE_CASE`)
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- table load and filter actions (`TABLE_LOAD`, `TABLE_LOAD_OK/ERR`, filter updates)
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- case load and nested resource actions (header/evidence/decisions/snapshots/diff)
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- decision drawer open/close and decision create/revoke actions
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- bundle export actions
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## 5. Determinism Requirements
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- Reducer must be pure (no global mutation, time access, randomness).
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- All derived URLs must be deterministic for a given state.
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- ETag/If-None-Match should be supported to reduce payload churn and improve sealed-mode behavior.
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## 6. Unit Testing Requirements
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Minimum tests:
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- Reducer purity: no external effects.
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- `TABLE_LOAD` produces correct URL for filters.
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- `ROUTE_CASE` triggers case header load.
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- `CASE_LOAD_OK` triggers evidence load (and the integration layer triggers other nested loads deterministically).
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- `DECISION_CREATE_OK` closes drawer and refreshes case header.
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- `BUNDLE_EXPORT_OK` emits `DOWNLOAD`.
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Recommended:
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- Golden state snapshots to ensure backwards compatibility when the state model evolves.
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||||
|
||||
---
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||||
|
||||
**Document Version**: 1.0
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**Target Platform**: Angular v17 + TypeScript
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||||
269
docs/modules/ui/guides/ux/TRIAGE_UX_GUIDE.md
Normal file
269
docs/modules/ui/guides/ux/TRIAGE_UX_GUIDE.md
Normal file
@@ -0,0 +1,269 @@
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# StellaOps Triage UX Guide (Narrative-First + Proof-Linked)
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||||
|
||||
## 0. Scope
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||||
|
||||
This guide specifies the user experience for StellaOps triage and evidence workflows:
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||||
|
||||
- Narrative-first case view that answers the three operator questions quickly.
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||||
- Proof-linked evidence surfaces (SBOM/VEX/provenance/reachability/replay).
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- Quiet-by-default noise controls with reversible, signed decisions.
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||||
- Smart-diff history that explains meaningful risk changes.
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||||
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||||
Architecture constraints:
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||||
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||||
- Lattice/risk evaluation executes in `scanner.webservice`.
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||||
- `concelier` and `excititor` preserve per-source provenance (every merged/pruned datum remains traceable to origin).
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||||
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||||
## 1. UX Contract
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||||
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||||
Every triage surface must answer, in order:
|
||||
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||||
1) Can I ship this?
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2) If not, what exactly blocks me?
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||||
3) What's the minimum safe change to unblock?
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||||
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||||
Everything else is secondary and should be progressively disclosed.
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## 2. Primary Objects in the UX
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||||
- Finding/Case: a specific vuln/rule tied to an asset (image/artifact/environment).
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- Risk Result: deterministic lattice output (score/verdict/lane), computed by `scanner.webservice`.
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- Evidence Artifact: signed, hash-addressed proof objects (SBOM slice, VEX doc, provenance, reachability slice, replay manifest).
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- Decision: reversible user/system action that changes visibility/gating (mute/ack/exception) and is always signed/auditable.
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- Snapshot: immutable record of inputs/outputs hashes enabling smart-diff.
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||||
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## 3. Global UX Principles
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||||
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||||
### 3.1 Narrative-first, list-second
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||||
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||||
Default view is a case narrative header plus an evidence rail. Lists exist for scanning and sorting, but not as the primary cognitive surface.
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||||
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||||
### 3.2 Time-to-evidence target
|
||||
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||||
From pipeline alert click -> human-readable verdict + first evidence link:
|
||||
|
||||
- p95 <= 30 seconds (including auth and initial fetch)
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||||
- evidence is always one click away (no deep tab chains)
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||||
|
||||
### 3.3 Proof-linking is mandatory
|
||||
|
||||
Any chip/badge that asserts a fact must link to the exact evidence object(s) that justify it.
|
||||
|
||||
Examples:
|
||||
|
||||
- "Reachable: Yes" -> call-stack slice and/or runtime hit record
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||||
- "VEX: not_affected" -> effective VEX assertion plus signature details
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||||
- "Blocked by Policy Gate X" -> policy artifact plus lattice explanation
|
||||
|
||||
### 3.4 Quiet by default, never silent
|
||||
|
||||
Muted lanes are hidden by default but surfaced with counts and a toggle. Muting never deletes; it creates a signed decision with TTL/reason and is reversible.
|
||||
|
||||
### 3.5 Deterministic and replayable
|
||||
|
||||
Users must be able to export an evidence bundle containing:
|
||||
|
||||
- scan replay manifest (feeds/rules/policies/hashes)
|
||||
- signed artifacts
|
||||
- outputs (risk result, snapshots)
|
||||
|
||||
so auditors can replay identically.
|
||||
|
||||
## 4. Information Architecture
|
||||
|
||||
### 4.1 Screens
|
||||
|
||||
1) Findings table (global)
|
||||
|
||||
- purpose: scan, sort, filter, jump into cases
|
||||
- default: muted lanes hidden
|
||||
- banner: shows count of auto-muted by policy with a "Show" toggle
|
||||
|
||||
2) Case view (single-page narrative)
|
||||
|
||||
- purpose: decision making plus proof review
|
||||
- above fold: verdict + chips + deterministic score
|
||||
- right rail: evidence list
|
||||
- tabs (max 3):
|
||||
- Evidence (default)
|
||||
- Reachability & Impact
|
||||
- History (smart-diff)
|
||||
|
||||
3) Export / verify bundle
|
||||
|
||||
- purpose: offline/audit verification
|
||||
- async export job, then download DSSE-signed bundle when enabled
|
||||
- verification UI: signature status, hash tree, issuer chain
|
||||
|
||||
### 4.2 Lanes (visibility buckets)
|
||||
|
||||
Lanes are a UX categorization derived from deterministic risk plus decisions:
|
||||
|
||||
- ACTIVE
|
||||
- BLOCKED
|
||||
- NEEDS_EXCEPTION
|
||||
- MUTED_REACH (non-reachable)
|
||||
- MUTED_VEX (effective VEX says not_affected)
|
||||
- COMPENSATED (controls satisfy policy)
|
||||
|
||||
Default: show ACTIVE/BLOCKED/NEEDS_EXCEPTION. Muted lanes appear behind a toggle and via the banner counts.
|
||||
|
||||
## 5. Case View Layout (Required)
|
||||
|
||||
### 5.1 Top Bar
|
||||
|
||||
- Asset name / image tag / environment
|
||||
- Last evaluated time
|
||||
- Policy profile name (e.g., "Strict CI Gate")
|
||||
|
||||
### 5.2 Verdict Banner (Above fold)
|
||||
|
||||
Large, unambiguous verdict:
|
||||
|
||||
- SHIP
|
||||
- BLOCKED
|
||||
- NEEDS EXCEPTION
|
||||
|
||||
Below verdict:
|
||||
|
||||
- One-line "why" summary (max ~140 chars), e.g. "Reachable path observed; exploit signal present; Policy 'prod-strict' blocks."
|
||||
|
||||
### 5.3 Chips (Each chip is clickable)
|
||||
|
||||
Minimum set:
|
||||
|
||||
- Reachability: Reachable / Not reachable / Unknown (with confidence)
|
||||
- Effective VEX: affected / not_affected / under_investigation
|
||||
- Exploit signal: yes/no + source indicator
|
||||
- Exposure: internet-exposed yes/no (if available)
|
||||
- Asset tier: tier label
|
||||
- Gate: allow/block/exception-needed (policy gate name)
|
||||
|
||||
Chip click behavior:
|
||||
|
||||
- opens evidence panel anchored to the proof objects
|
||||
- shows source chain (concelier/excititor preserved sources)
|
||||
|
||||
### 5.4 Evidence Rail (Always visible right side)
|
||||
|
||||
List of evidence artifacts with:
|
||||
|
||||
- type icon
|
||||
- title
|
||||
- issuer
|
||||
- signed/verified indicator
|
||||
- short content digest
|
||||
- created timestamp
|
||||
|
||||
Actions per item:
|
||||
|
||||
- preview
|
||||
- copy digest
|
||||
- open raw
|
||||
- "show in bundle" marker
|
||||
|
||||
### 5.5 Actions Footer (Only primary actions)
|
||||
|
||||
- create work item
|
||||
- acknowledge / mute (opens decision drawer)
|
||||
- propose exception (decision with TTL plus approver chain)
|
||||
- export evidence bundle
|
||||
|
||||
No more than 4 primary buttons. Secondary actions go into a menu.
|
||||
|
||||
## 6. Decision Flows (Mute/Ack/Exception)
|
||||
|
||||
### 6.1 Decision Drawer (common UI)
|
||||
|
||||
Fields:
|
||||
|
||||
- decision kind: mute reach / mute VEX / acknowledge / exception
|
||||
- reason code (dropdown) plus free-text note
|
||||
- TTL (required for exceptions; optional for mutes)
|
||||
- policy ref (auto-filled; editable only by admins)
|
||||
- sign and apply (server-side signing where enabled; user identity included)
|
||||
|
||||
On submit:
|
||||
|
||||
- create decision (audited)
|
||||
- re-evaluate lane/verdict if applicable
|
||||
- create snapshot ("DECISION" trigger)
|
||||
- show toast with undo link
|
||||
|
||||
### 6.2 Undo
|
||||
|
||||
Undo is implemented as "revoke decision" (signed revoke record or revocation fields). Never delete.
|
||||
|
||||
## 7. Smart-Diff UX
|
||||
|
||||
### 7.1 Timeline
|
||||
|
||||
Chronological snapshots:
|
||||
|
||||
- when (timestamp)
|
||||
- trigger (feed/vex/sbom/policy/runtime/decision/rescan)
|
||||
- summary (short)
|
||||
|
||||
### 7.2 Diff panel
|
||||
|
||||
Two-column diff:
|
||||
|
||||
- inputs changed (with proof links): VEX assertion changed, policy version changed, runtime trace arrived, etc.
|
||||
- outputs changed: lane, verdict, score, gates
|
||||
|
||||
### 7.3 Meaningful change definition
|
||||
|
||||
The UI only highlights meaningful changes:
|
||||
|
||||
- verdict change
|
||||
- lane change
|
||||
- score crosses a policy threshold
|
||||
- reachability state changes
|
||||
- effective VEX status changes
|
||||
|
||||
Other changes remain in expandable details.
|
||||
|
||||
## 8. Performance & UI Engineering Requirements
|
||||
|
||||
- findings table uses virtual scroll and server-side pagination
|
||||
- case view loads in 2 steps:
|
||||
1) header narrative (small payload)
|
||||
2) evidence list plus snapshots (lazy)
|
||||
- evidence previews are lazy-loaded and cancellable
|
||||
- use ETag/If-None-Match for case and evidence list endpoints
|
||||
- UI must remain usable under high latency (air-gapped / offline kits):
|
||||
- show cached last-known verdict with a clear "stale" marker
|
||||
- allow exporting bundles from cached artifacts when permissible
|
||||
|
||||
## 9. Accessibility & Operator Usability
|
||||
|
||||
- keyboard navigation: table rows, chips, evidence list
|
||||
- high contrast mode supported
|
||||
- all status is conveyed by text + shape (not color only)
|
||||
- copy-to-clipboard for digests, purls, CVE IDs
|
||||
|
||||
## 10. Telemetry (Must instrument)
|
||||
|
||||
- TTFS: notification click -> verdict banner rendered
|
||||
- time-to-proof: click chip -> proof preview shown
|
||||
- mute reversal rate (auto-muted later becomes actionable)
|
||||
- bundle export success/latency
|
||||
|
||||
## 11. Responsibilities by Service
|
||||
|
||||
- `scanner.webservice`:
|
||||
- produces reachability results, risk results, snapshots
|
||||
- stores/serves case narrative header, evidence indexes, smart-diff
|
||||
- `concelier`:
|
||||
- aggregates vuln feeds and preserves per-source provenance
|
||||
- `excititor`:
|
||||
- merges VEX and preserves original assertion sources
|
||||
- `notify.webservice`:
|
||||
- emits first_signal / risk_changed / gate_blocked
|
||||
- `scheduler.webservice`:
|
||||
- re-evaluates existing images on feed/policy updates, triggers snapshots
|
||||
|
||||
---
|
||||
|
||||
**Document Version**: 1.0
|
||||
**Target Platform**: .NET 10, PostgreSQL >= 16, Angular v17
|
||||
Reference in New Issue
Block a user