> If you have a month to plan a project in detail, spend it on four one-week iterations developing while you improve your estimates. If you have a week to plan a project, hold five one-day iterations. Feedback cycles give you information and the experience to make accurate estimates.
- Kent Beck, Extreme Programming Explained: Embrace Change (The XP Series)
> for each desired change, make the change easy (warning: this may be hard), then make the easy change
- Kent Beck
https://twitter.com/KentBeck/status/250733358307500032
Also related to tfa:
> If you have a month to plan a project in detail, spend it on four one-week iterations developing while you improve your estimates. If you have a week to plan a project, hold five one-day iterations. Feedback cycles give you information and the experience to make accurate estimates.
- Kent Beck, Extreme Programming Explained: Embrace Change (The XP Series)