XP (eXtreme Programming)

XP (eXtreme Programming) is a lightweight software development methodology designed to improve software quality and responsiveness to changing customer requirements. Created by Kent Beck in the late 1990s, XP emphasizes excellent application of programming techniques, clear communication, and teamwork. Core practices of XP include: 1. Test-Driven Development (TDD): Developers write tests before writing code, ensuring features work as expected. 2. Pair Programming: Two programmers work together at one computer, continuously reviewing each other's code. 3. Continuous Integration: Code changes are integrated into the shared repository multiple times daily, preventing integration problems. 4. Refactoring: Developers restructure existing code to improve design and maintainability while preserving functionality. 5. Small Releases: Delivering small, functional pieces of the system early and frequently. 6. Collective Code Ownership: Any developer can change any code anywhere in the system at any time. 7. Simple Design: The system should be designed as simply as possible at any given moment. 8. Coding Standards: Consistent style rules maintain code readability and facilitate communication. 9. Sustainable Pace: Teams work at a pace they can maintain indefinitely, avoiding burnout. 10. On-site Customer: A customer representative works with the development team full-time to answer questions and set priorities. XP is characterized by short development cycles, incremental planning, and close customer feedback loops. It places high value on adaptability over predictability and promotes a collaborative environment. In the PMI-ACP context, XP represents one of the Agile methodologies practitioners should understand, as it embodies Agile principles through concrete engineering practices that support rapid, high-quality software development.

XP (eXtreme Programming) is a lightweight software development methodology designed to improve software quality and responsiveness to changing customer requirements. Created by Kent Beck in the late …

Concepts covered: Continuous Integration, Pair Programming, Coding Standards, Small Releases, Collective Ownership, System Metaphor, Continuous small improvements, Whole Team, On-Site Customer, Metaphor, Feedback, Test-Driven Development