1. XP ( EXTREME Programming
Model )
by : Ali masudianPour
Software Engineer Lab

2. What is XP Model ?
• Extreme Programming (XP) is a software development
methodology which is intended to improve software quality
and responsiveness to changing customer requirements.

3. Goals
• Extreme Programming Explained describes Extreme
Programming as a software development discipline that
organizes people to produce higher quality software more
productively.

4. Activity
• XP describes 5 basic activities that are performed within the
software development process:
• Planning
• Managing
• Designing
• Coding
• Testing
• Each of those activities is important.

5. Planning
• User stories are written.
• Release planning creates the release schedule.
• Make frequent small releases.
• The project is divided into repeated levels .
• repeated levels planning starts on each repeated level.

6. Managing
• Give the team a dedicated open work space.
• Set a untrack time for pace .
• A stand up meeting starts each day.
• The Project Velocity is measured.
• Move people around.
• Fix XP when it breaks.

7. Designing
• Make it simple.
• Choose a system metaphor.
• Use CRC cards for design sessions.
• Create spike solutions to reduce risk.abshar
• No functionality is added early.
• Refactor whenever and wherever possible.

8. Coding
• The customer is always available.
• Code must be written to agreed standards.
• Code the unit test first.
• All production code is pair programmed.(2 person)
• Set up a dedicated integration computer.
• Use collective codes.

9. Testing
• All code must have unit tests.
• All code must pass all unit tests before it can be released.
• When a bug is found tests are created.

10. END!
• Best regards;
• Ali MasudianPour
• References:
• http://extremeprogramming.org
• http://wikipedia.com