Software G Forces:The Effects of Acceleration

Kent BeckThree Rivers Institute

Deployment: 1990

Annual Quarterly

Monthly DailyWeekly Hourly

Deployment: 2010

Annual Quarterly

Monthly DailyWeekly Hourly

Deployment: 2030

Annual Quarterly

Monthly DailyWeekly Hourly

Relativity

Annual to Quarterly

+ Subscriptions+ Demonstrations+ Automated

acceptance tests+ Refactoring+ Continuous

integration

Quarterly to Monthly

+ Pay per use+ Developer testing+ Stand-up meetings+ Cards on a wall

- Q/A department- Design document- Change requests- Analysis team- Build team- Multiple deployed

versions

Monthly to Weekly

+ Kanban+ Bootstrap financing+ Live, 2-way data

migration+ Defect zero+ Temporary branches+ Keystoning

- Test team- Venture capital- One-way data

migration- Release branch- Patches- Up-front usability

design

Weekly to Daily

+ Immunization+ A/B testing

- Operations team- Multi-tasking- Staging- Stand-up meetings

Test the waters

Nemawashi

• Remove all impediments to a faster deployment cycle

Visibility

Questions?