Difference between Scrum, XP
1. Scrum iterations are 2-4 week long, XP- 1-2 weeks long
2. Scrum do not allow changes into their sprints, XP Allows
3. Scrum tasks prioritised by team, XP- by customer and stricter
4. Scrum does not follow engring practices unlike XP follows TDD, pair programming, simple design, refactoring, and so on