What

Create traceability matrices for each ecosystem project that map features to
their test files and implementation modules, ensuring complete test coverage
visibility.

Why

No ecosystem project currently has a formal mapping between features, their tests,
and implementation modules. This makes it difficult to assess test coverage gaps,
understand which tests to run when modifying a module, and verify that all features
have corresponding tests.

Where

How

Traceability Matrix Format

---
doc_id: "{PREFIX}-QUAL-002"
doc_title: "Feature-Test-Module Traceability Matrix"
doc_version: "1.0.0"
doc_date: "YYYY-MM-DD"
doc_status: "Released"
project: "{project_name}"
category: "QUAL"
---

# Traceability Matrix

## Feature → Test → Module Mapping

| Feature ID | Feature | Test File(s) | Module/Directory | Status |
|-----------|---------|-------------|-----------------|--------|
| THR-FEAT-001 | Thread Pool Creation | thread_pool_test.cpp | sources/thread_pool/ | Covered |
| THR-FEAT-002 | Priority Queue | priority_queue_test.cpp | sources/queues/ | Covered |
| THR-FEAT-003 | Work Stealing | work_stealing_test.cpp | sources/schedulers/ | Partial |

## Coverage Summary

| Category | Total Features | Covered | Partial | Uncovered |
|----------|---------------|---------|---------|-----------|
| Core | 10 | 8 | 1 | 1 |
| Integration | 5 | 3 | 2 | 0 |
| **Total** | **15** | **11** | **3** | **1** |

Implementation Steps

1. Inventory features from each project's FEATURES.md or README
2. Map features to test files using grep/search
3. Map features to implementation modules/directories
4. Identify coverage gaps (features without tests)
5. Generate TRACEABILITY.md per project
6. Add to SSOT registry

Acceptance Criteria

• docs/TRACEABILITY.md exists in all 8 projects
• All publicly documented features are listed
• Each feature maps to specific test file(s)
• Each feature maps to implementation module/directory
• Coverage summary table included
• Gaps explicitly identified with "Uncovered" or "Partial" status

Related

• Part of docs: Ecosystem documentation improvement — enterprise-level standardization #559 (Ecosystem documentation improvement)
• Depends on docs: Add YAML frontmatter to all docs/ markdown files #562 (YAML frontmatter — doc_id format)
• Depends on docs: Create SSOT documentation registry per project #563 (SSOT registry — traceability listing)