1. WARNING
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2. A success story: Damien is working for a technology startup
A success story: Damien is working for a technology startup. He is part of a 5-member team, all good buddies of each other and work was fun. It was a critical project for a major overseas client. The product is a novel proof-of-concept proxy server. As the team enters the last two weeks of the project, they are one week ahead of schedule and has one week allocated for integration and testing. i.e., they have two weeks to do the work of one week.
They decide to do a quick integration and take the extra week off to celebrate the first release…

4. UI UI
MSLogic
MSLogic
History
History
Storage
Storage

7. Due to miscom

8. Due to miscom

9. CS2103/T, Lecture 7, Part 3, [Sep 30, 2016]
How to Avoid a Big Bang:
Integrating Software Components
CS2103/T, Lecture 7, Part 3, [Sep 30, 2016]

10. [Extra] Integration Work in parallel Integrate Search Logic Cache
Storage UI UI
Logic
Search
Cache
Storage

11. Late and one-time IntegrationUI UI UI UI
Logic
Logic
Search
Logic
Search
Search
Logic
Search
Cache
Storage
Cache
Storage
Cache
Cache
Storage
Storage

12. Early and frequent IntegrationUI UI UI
Logic
Logic
Search
Logic
Search
Search
Cache
Storage
Cache
Cache
Storage
Storage

13. Early and frequent Integration Late and one-time Integration

14. Early and frequent Integration Late and one-time Integration?

15. Early and frequent Integration Late and one-time Integration

16. Early and frequent Integration Late and one-time Integration

17. Late and one-time Integration Early and frequent Integration
Continuous

18. Late and one-time Integration Early and frequent Integration
Continuous
We use Travis to perform Continuous Integrations

19. UI UI UI
Logic
Logic
Search
Search
Logic
Search
Cache
Storage
Cache
Cache
Storage
Storage

20. [Extra] Top-down IntegrationUI UI
Logic
Logic
Search
Search
Cache
Storage
Cache
Cache
Storage
Storage
Stubs

21. [Extra] Bottom-up IntegrationUI UI
Driver
Logic
Logic
Search
Search
Cache
Cache
Storage
Storage

22. [Extra] Sandwich IntegrationUI UI
Logic
Logic
Search
Search
Search
Driver
Cache
Cache
Storage
Storage

23. [Extra] Big bang IntegrationUI
Logic
Search
Cache
Storage

24. [extra] Boom!

26. (top-down, bottom-up, sandwich)
Incremental
(top-down, bottom-up, sandwich)
NOT big bang

27. (top-down, bottom-up, sandwich)
Incremental
(top-down, bottom-up, sandwich)
NOT big bang

28. Incremental
ly, early , frequently
NOT big bang

30. 1. Do a small change + tests 2. Run tests 3. Fix any problems 4
1. Do a small change + tests 2. Run tests Fix any problems 4. Rinse and repeat

31. 1. Do a small change+ tests 2. Run tests 3. Fix any problems 4
1. Do a small change+ tests 2. Run tests Fix any problems 4. Rinse and repeat

32. We use Gradle for build automation
1. Do a small change + tests 2. Run tests Fix any problems 4. Rinse and repeat
We use Gradle for build automation
We can run GUI tests using headless mode
Travis can run tests for the code pushed to repo

33. V0.1 : reach in small steps  Git tag  continue to evolve to V0.2
add Read LOTR
Added “Pay phone bills”
1. Buy milk
2. Submit report
3. Return books
4. Pay phone bill
Web page
status bar