瀑布模型与敏捷模型项目过程对比表

Waterfall vs. Agile

Project Attributes	Classic Waterfall	Incremental Waterfall	Agile Iteration	Agile Kanban
Number of releases	1	1	2 or more	2 or more
Number of iterations	1	2-6	4 or more	1
Iteration length	Not applicable	Many months	1-4 weeks	Not applicable
Maximum number of features in progress	No maximum	No maximum	1 iteration's worth	Less than the number of team members
Integration frequency	Big Bang	Quarterly	Daily or hourly	Daily or hourly
Requirement to test duration	Months or years	Months	Days	Days
Test timing	Separate phase	Separate phase	Mostly incremental	Mostly incremental
Release criteria	Scope-based	Scope-based	Time-boxed	Time-boxed
Average requirement task effort	Person months	Person months	Person days	Person days
Average development task effort	Person days or weeks	Person days or weeks	Person hours	Person hours
Culture	Hierarchical	Hierarchical	Collaborative	Collaborative
Skills	Highly specialized	Highly specialized	Generalists	Generalists or specialists
Determining progress	Work completed relative to plan	Work completed relative to plan	Delivery of working code	Delivery of working code
Work remaining	Estimate duration of remaining tasks	Estimate duration of remaining tasks	Estimated time for remaining features	Estimated time for remaining features

  参考资料

1. Acceptance Test Engineering Guide by Microsoft