Extreme Programming, by contrast, advocates adjusting and building onto products throughout the development cycle. It also uses an ongoing strategy of collaboration and face-to-face contact.

What are the best resources on extreme programming? Here’s what the Sabre Airline Solutions staff recommends: Agile Software Development Principles, Patterns and Practices, Robert C. Martin ...

Extreme Programming and Scrum are very powerful methodologies, but if you don’t keep testing and quality at the heart of the development process, the team will not reach its optimal performance.