With a legacy system, the team releases weekly by having 70% unit test coverage and 1500 acceptance tests using Robot Framework, with testing via regression flows and keeping delta technical debts to 5 days or fewer while avoiding critical issues through practices like test-driven development and pairing/mobbing as feasible given the legacy code base.

1. How to release everyweek
With legacy system

2. HUNG HOANG
Tech Lead
CHAU HOANG
Agile Coach

4. XP

5. LEGACY SYSTEM
Where it all began

7. Image courtesy of The-Challenge.org

8. CODE
Partially owned
TEST
Must be fully covered
FEATURES
Adding as you go
DEPLOYMENT
Big Bang Forbidden

9. Approach

10. How things are stored

11. Workflow
User Stories Tasks Development
Deploy Staging/ProductionPackage Repo
Repo

12. Testing via RF

13. Current Stats
70%
UNIT TEST COVERAGE
1500
ACCEPTANCE TESTS
5days
DELTA TECHNICAL DEBTS
0
CRITICAL ISSUES

14. Issues
• TDD as you wish
• Legacy acceptance tests
• Difficult test setup
• Conflict with vendor
• Pair/trio/mob mess

15. Robot Framework

16. WE’RE HIRING

17. Q&A