Xtreme Programming (XP) Vs Scrum

Introduction:

Both Scrum and Extreme programming which is also known by XP are basically two agile processes. These two processes are very much aligned to one another and they uniquely complement each other. When working with a team, it is hard to recognize which one is which. Though this is the case and yet there are quite several differences between the two agile processes. So we are going to help you understand the differences between them.

Scrum	XP
Scrum teams as you all know have sprint whose duration is most of the time between 2 and 4 weeks.	But the XP teams tend to work in iteration which is no longer than 1-2 weeks.
Once everything is planned in Scrum, there aren’t any changes allowed to the chosen sprint backlog. Whatever is decided, the team has to work on it.	On the other hand, the XP teams are more pen to ant change that lies within their iterations. But there is obviously a condition that is, the changes can only be made if the team has not started working on that particular feature.
Similarly, in Scrum, the product owner has the right to prioritize the product backlog. But the team has this option of choosing a lower priority item for a sprint to work before starting the high priority work.	Whereas, the XP teams are always bound to work on the work that has been prioritized by the customer. In short, they have to work the way as the customer wishes.
Scrum does not prescribe a set of engineering practices rather they have their own methodologies and principles to follow.	Contrary, the XP does mandate a set of engineering practices.
On one hand, the Scrum plans ceremonies and artifacts.	But on the other hand, the XP teams don’t do any such planning.
In Scrum, the Scrum Master is responsible for communicating with the product owner regarding setting the stories for the sprint from the backlog.	But in XP, the customer acts as the product owner and is always there for the team to set the priority of the tasks. Not only that, but he also brings in new requirements and frequently reviewing the releases.

Conclusion:

Though these were quite small differences between the two, yet they put quite an impact on the way things are done. So we would suggest you to always start with Scrum. Try to follow all the principles and steps that Scrum offers and then move on to inventing your own version of XP. There is no doubt in the fact that the XP practices are too good. But the only way the XP team performs best is through force. Rather than assigning or delegating tasks to the team members, they are constantly being forced to perform well. This is not the case in Scrum instead, you can consider Scrum as a big bull’s eye that itself brings out the best from the team through additional focus and time-boxed iterations.SO if you want do  PSM certification these PSM certification test will helps you to pass the exam in first try . Thus you need to understand both the terms carefully and then decide which one is best in your case.