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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…

UI MSLogic Storage History UI MSLogic Storage History

Due to miscom

How to Avoid a Big Bang: Integrating Software Components CS2103/T, Lecture 6, Part 2, [Sep 19, 2014]

How to Avoid a Big Bang: Integrating Software Components CS2103/T, Lecture 6, Part 2, [Sep 19, 2014]

How to Avoid a Big Bang: Integrating Software Components An approachA tool

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

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

Logic UI Search Cach e Storage Logic UI Search Cache Storage Logic UI Search Cache Storage Search Logic Cache Storage UI Late and one-time Integration

Logic UI Search Cach e Storage Logic UI Search Cache Storage Logic UI Search Cache Storage Early and frequent Integration

Late and one-time Integration

Early and frequent Integration Late and one-time Integration ?

Early and frequent Integration Late and one-time Integration

Early and frequent Integration Late and one-time Integration

Logic Search Cache Storage UI Logic Search Cache Storage UI Search Logic Cache Storage UI

[Extra] Top-down Integration Logic Search Cache Storage UI Logic Search Cache Storage UI Cache Storage Stubs

[Extra] Bottom-up Integration Logic Search Cache Storage UI Logic Search Cache Storage UI Driver

[Extra] Sandwich Integration Logic Search Cache Storage UI Logic Search Cache Storage UI Search Driver

[Extra] Big bang Integration Logic Search Cache Storage UI

[extra] Boom!

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

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

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

Incremental ly, early, frequently NOT big bang

How to Avoid a Big Bang: Integrating Software Components An approach A tool

RCS Remote repo

RCS Remote repo

RCS Remote repo Centralized CVS SVN (Subversion)

RCS Remote repo Centralized Distributed CVS SVN Hg Git Bazaar Remote repos

RCS Remote repo Centralized Distributed CVS SVN Hg Git Bazaar Remote repos

Git commandline C:\CityConnect>git remote add origin C:\CityConnect>git push master origin Username for ' damithc Password for Counting objects: 3, done. Writing objects: 100% (3/3), 225 bytes | 0 bytes/s, done. Total 3 (delta 0), reused 0 (delta 0) To * [new branch] master -> master C:\CityConnect> push John init add remote GitHub repo

C:\>git clone CityConnect Cloning into ‘CityConnect'... remote: Counting objects: 3, done. remote: Total 3 (delta 0), reused 0 (delta 0) Unpacking objects: 100% (3/3), done. C:\> push JohnJean clone init GitHub repo

Git commandline C:\CityConnect>git commit -a -m "added support for add feature" push JohnJean clone init GitHub repo

Git commandline C:\CityConnect>git commit -a -m "added support for add feature" C:\CityConnect>git push origin master push JohnJean clone init GitHub repo

Git commandline Git repo C:\CityConnect> git fetch origin push John fetch init

Git commandline C:\CityConnect> git merge origin/master push John fetch merge init GitHub repo (pull ≈ fetch + merge) C:\CityConnect> git pull

push John fetch merge init GitHub repo

Remote repo push fetch clone commit init merge

How to Avoid a Big Bang: Integrating Software Components An approach A tool

How to Avoid a Big Bang: Integrating Software Components An approach A tool

UI MSLogic Storage History Start with a ‘walking skeleton’

UI MSLogic Storage History Start with a ‘walking skeleton’

UI MSLogic Storage History Adopt RCS gradually

Pull request Branches Pull request

How to Avoid a Big Bang: Integrating Software Components An approach A tool