eXtreme Programming
A Practitioner's Approach

Outline
XP Overview
XP Values
XP Practices
XP FAQs
Demo
Q&A

XP Overview
What is XP?
Nothing to do with Windows XP
A software engineering methodology (a form of agile
software development) prescribing a set of practices
(aka XP best practices).
A discipline of software development based on values of
simplicity, communication, feedback, courage, and
respect (Jeffries, 2001).
A development process that is more responsive to
customer needs (\"agile\") than traditional methods, while
creating software of better quality (Wikipedia, 2008).
How to apply XP?
5 values
12 best practices

XP Values
Communication
Customer - Developer
Developer - Developer
Simplicity
Start with the simplest solution.
Extra functionality can then be added later.
Feedback
From the system
From the customer
From the team
Courage
Refactoring
Persistence
Respect
Respect other team members' work

XP Practices
The Planning Game:
Release Planning
Iteration Planning
Pivotal Tracker as XP Management Tool

XP Practices
Stand-up meeting

XP Practices
Continuous Testing
Unit / Functional tests applying Test Driven Development

XP Practices
Continuous Testing
GUI test with Selenium

XP Practices
Continuous Testing
Acceptance Test by customer

XP Practices
Pair Programming
Working environment

XP Practices
Pair Programming
Working in pair ...

XP Practices
Pair Programming
... and active participation

XP Practices
Onsite Customer
Communicate via phone ...

XP Practices
Onsite Customer
... via standard messenger software

XP Practices
Onsite Customer
... and web-based real-time group chat tool

XP Practices
Small Release
System Metaphor
Simple Design
Refactoring
Collective Code Ownership
Continuous Integration
40-Hours Work Week
Coding Standards

XP FAQs
How big a project will XP work with?
Won't pair programming cut productivity in half?
Isn't it annoying having someone looking over your shoulder
while you program?
Why just pair programming? Why not 3 or 4 or 100
programmers?

Demo
Pivotal Tracker: project management tool
Test Driven Development
Refactoring
Pair Programming
Ruby on Rails
Facebook

References
Jeffries R., 2001, \"XProgramming\" . Available at: http://www.
xprogramming.com/xpmag/whatisxp.htm [Accessed
November 13th 2008]
Wikipedia, 2008, \"Extreme Programming\" . Available at: http:
//en.wikipedia.org/wiki/Extreme_Programming [Accessed
November 13th 2008]
Brewer J., Design J., 2001, \"Extreme Programming FAQ\".
Available at: http://www.jera.com/techinfo/xpfaq.html
[Accessed November 13th 2008]
Wells D., 2006, \"Extreme Rules\" . Available at: http://www.
extremeprogramming.org/rules.html [Accessed November
13th 2008]

Q&A
(Source: http://forpd.ucf.edu/strategies/QUESTION.jpg)