eXtreme Programming

A Practitioner's Approach

OutlineXP Overview

XP Values

XP Practices

XP FAQs

Demo

Q & A

XP OverviewWhat 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 values12 best practices

XP ValuesCommunication

Customer - DeveloperDeveloper - Developer

SimplicityStart with the simplest solution.Extra functionality can then be added later.

FeedbackFrom the systemFrom the customerFrom the team

CourageRefactoringPersistence

RespectRespect other team members' work

XP PracticesThe Planning Game:

Release PlanningIteration Planning

Pivotal Tracker as XP Management Tool

XP Practices

Stand-up meeting

XP PracticesContinuous Testing

Unit / Functional tests applying Test Driven Development

XP PracticesContinuous Testing

GUI test with Selenium

XP PracticesContinuous Testing

Acceptance Test by customer

XP PracticesPair Programming

Working environment

XP PracticesPair Programming

Working in pair ...

XP PracticesPair Programming

... and active participation

XP PracticesOnsite Customer

Communicate via phone ...

XP PracticesOnsite Customer

... via standard messenger software

XP PracticesOnsite Customer

... and web-based real-time group chat tool

XP PracticesSmall 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

ReferencesJeffries 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)