Agile Testing Question:

Scrum:
☛ Scrum teams usually have to work in iterations called sprints which usually last up to two weeks to one month long
☛ Scrum teams do not allow change into their sprints
☛ In scrum, the product owner prioritizes the product backlog but the team decides the sequence in which they will develop the backlog items
☛ Scrum does not prescribe any engineering practices

Extreme Programing (XP):
☛ XP team works in iteration that last for one or two weeks
☛ XP teams are more flexible and change their iterations
☛ XP team work in strict priority order, features developed are prioritized by the customer
☛ XP does prescribe engineering practices