XP - Extreme Programming

XP

• respond to high cost of changing requirements; and
• establish strong engineering practices to improve software quality

XP introduced revolutionary concepts, such as:

• Test Driven Development;
• Continous Integration;
• Iterations; and
• User Stories

Five Core Principles of XP

• Communication
• Simplicity
• Feedback
• Courage
• Respect

XP Practices

• Fine-scale feedback
• Pair-Programming
• Planning Game
• Test-Driven Development
• Whole Team
• Continuous Process
• Continuous Integration
• Refactoring or design improvement
• Small releases
• Shared Understanding
• Coding standards
• Collective code ownership
• Simple design
• System Metaphor
• Programmer Welfare
• Sustainable pace