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Difference between Scrum and XP

Last Updated : 19 Jun, 2024
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There are two main models of Agile framework namely: Scrum, and Extreme Programming (XP). Scrum and Extreme Programming (XP) are both prominent methodologies under the Agile framework, designed to enhance software development processes by promoting flexibility, iterative improvement, and customer satisfaction.

What is Scrum Framework?

Scrum is a type of Agile framework. It is a framework within which people can address complex adaptive problems while the productivity and creativity of delivering products are at the highest possible value. Scrum uses an Iterative process.

Life Cycle of Scrum: 

 

Extreme Programming (XP):

Extreme Programming is one of the most important models of Agile framework. This model emphasizes team-work and customer satisfaction as well. The five basic component of Extreme Programming are:

  1. Communication
  2. Simplicity
  3. Feedback
  4. Respect
  5. Courage

Life Cycle of Extreme Programming (XP): 

S. No.ScrumExtreme Programming (XP)
Teamwork IterationsIn the Scrum framework, teamwork in iterations is called Sprint which is 2 weeks to 1 month long.In Extreme Programming(XP), teamwork for 1-2 weeks only.
Flexibility in TimelinesScrum models do not allow changes in their timeline or their guidelines.Extreme Programming allows changes in their set timelines.
EmphasisScrum emphasizes self-organization.Extreme Programming emphasizes strong engineering practices
Development SequenceIn the Scrum framework, the team determines the sequence in which the product will be developed.In Extreme Programming, the team has to follow a strict priority order or pre-determined priority order.
Framework AdaptationThe Scrum framework is not fully described. If you want to adopt it then you need to fill the framework with your frameworks methods like XP, DSDM, or Kanban.Extreme Programming(XP) can be directly applied to a team. Extreme Programming is also known for its Ready-to-apply features.
Software Engineering PracticesScrum does not put emphasis on software engineering practices that developers should use.Extreme Programming (XP) emphasizes programming techniques that developers should use to ensure a better outcome.
Engineering MethodsIt requires developers to be conscious of adopting engineering methods to ensure better progress or quality.It is very strict in adopting engineering methods such as pair programming, simple design, restructuring to ensure better progress or quality.
Feature PrioritizationIn the preference of features, demand and priority do not have to be in line with one another. In the preference of features, the demand corresponds to the priority.
Task PrioritizationIn scrum, the scrum master asks the owner of the product to prioritize the tasks according to their requirements.In XP, customer decides the job priorities being the owner of the product and then analyses the releases.
Flexibility in Task PrioritizationThe tasks are prioritized by the owner of the product but with the flexibility that the priorities can be changed later on by the development team if required.The tasks are prioritized by the customer and the task priorities cannot be changed by the development team.
Core Values

Values-

  • Openness
  • Focus
  • Commitment

Values-

  • Communication
  • Simplicity
  • Feedback
Customer InvolvementCustomer involvement is less in the project.Customer involvement is more in the project.

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