Quality Excellence¶
Build quality into systems rather than inspecting for it afterwards.
Principles¶
- Build Quality In — prevention over detection
- Test at the appropriate level — most tests should be fast and isolated
- Automate validation — anything repeatedly validated manually should be automated
- Quality is a team responsibility — not owned by QA alone
Testing Strategy¶
The three levels: - Unit Tests — fast, isolated, business logic focused - Integration Tests — service and data interactions - End-to-End Tests — critical user journeys, used selectively
Quality Gates¶
Every PR should pass: - Automated tests - Code quality checks - Security scans - Peer review approval
Branch protection should enforce: - No direct commits to main - Required approvals - Required status checks
Strong Signals¶
- Automated validation at every stage
- Fast feedback loops
- Low defect escape rate
- Stable, predictable releases
Weak Signals¶
- Frequent regressions
- Manual testing as primary quality control
- Customer-reported defects
- Unpredictable releases