4 XP's Values

Communication - Most desirable is face–to–face communication where we can talk, respond, gesture and draw on a whiteboard. Less desirable are written documents. XP stresses communication through practices such as pair programming.

Simplicity - This is a value of XP teams because it keeps their focus on creating a solution to the problem faced today, not the problem anticipated tomorrow.They remain constantly focused on doing the simplest thing that could possibly work.

Feedback - XP teams value feedback, and the more immediate the feedback the better. This is achieved by Pair programming, Continuous Integration,Automated Testing and from customers.

Courage - XP teams value courage. For example, they have courage to refactor their code (because they have automated tests to back up that courage).They will use a metaphor and maintain a simple design through refactoring and test driven development.

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