Principles of Extreme Programming XP

Xp is based on a set of proven practices that are all designed to work together, although many folks do pick and choose, and adopt only a portion of XP's rules

Here are a few practices.

• Make small, but frequent releases.
• Develop in iteration cycles and not in big-bang models
• Don't put anything that is not in the spec, no matter how tempted you to put in functionality for the future.
• Write the test code first
• No killer schedules, work regular hours
• Refactor (improve the code) whenever and wherever you notice the opportunity
• Don't release anything until it passes all tests
• Set realistic schedules, based around small releases.
• Keep it simple
• Program in pairs, and move people around so that everybody knows pretty much everything about code.

Adapted from the book Headfirst Java