Strong dev-QA collaboration multiplies team effectiveness.
Practices:
1. Shared understanding of requirements.
QA reviews user stories. Asks clarifying questions. Identifies test scenarios. Catches ambiguities.
2. Test cases written before / during dev.
Not after. Dev sees test cases; builds to pass them. TDD-adjacent.
3. Pair sessions.
Dev + QA work together on hard problems.
4. Regular triage.
Defects triaged daily. Both teams agree on priority.
5. Knowledge sharing.
Dev explains technical context. QA explains business context. Both grow.
6. Avoid antagonism.
QA isn't out to find bugs to embarrass devs. Devs aren't dismissing QA findings.
7. Joint definition of "done".
Includes tests passing, coverage met, UAT confirmed.
8. Co-ownership of quality.
Quality isn't just QA's job. Devs own quality of their code; QA owns process.
9. Mutual respect for expertise.
QA knows business / quality patterns. Devs know technical depth. Combine.
10. Communication.
Regular standups, sprint reviews, retros. Same room.
Anti-patterns:
- Throw it over the wall — dev finishes; QA finds defects late.
- Adversarial relationship — finger pointing.
- QA after dev — testing as cleanup, not concurrent.
- No shared metrics — different goals.
Senior QA insight: QA and dev are partners, not adversaries. Quality is a team outcome.
The senior framing: the best QAs make devs better; the best devs make QAs more effective. Mutual elevation.