Delivering incrementally: lessons about breaking up complex features

on YouTube ↗49m

" summary

Claim: break multi-service features by carving a thin, end-to-end slice (the “no sandwiches” case) and shipping real interface code, contract tests and a failing UI acceptance test so teams work in parallel. Uses Swift unit tests against a local mock service, records a contract file (broker optional), provider unit tests that set provider state, and mob programming for the initial interface PR merged to main. Result: fast integration feedback (from months to days), fewer merge conflicts, independently testable and deployable layers. interface-driven development consumer-driven contracts mob programming

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" chapters (12)

1. 0:00Introduction and background
2. 3:11Breaking down large features
3. 7:23Organizational challenges
4. 10:12Frontend implementation breakdown
5. 13:40Interface driven development
6. 23:52Benefits of interface driven development
7. 24:34Consumer driven contracts explained
8. 31:42Parallel development across platforms
9. 38:01End-to-end testing approach
10. 40:08Design and feedback loops
11. 43:08Adoption and training challenges
12. 46:41Communication with business and product

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