Your SlideShare is downloading. ×
Pair Programming and XP Values
Upcoming SlideShare
Loading in...5
×

Thanks for flagging this SlideShare!

Oops! An error has occurred.

×

Saving this for later?

Get the SlideShare app to save on your phone or tablet. Read anywhere, anytime - even offline.

Text the download link to your phone

Standard text messaging rates apply

Pair Programming and XP Values

287
views

Published on

Published in: Technology

0 Comments
1 Like
Statistics
Notes
  • Be the first to comment

No Downloads
Views
Total Views
287
On Slideshare
0
From Embeds
0
Number of Embeds
1
Actions
Shares
0
Downloads
1
Comments
0
Likes
1
Embeds 0
No embeds

Report content
Flagged as inappropriate Flag as inappropriate
Flag as inappropriate

Select your reason for flagging this presentation as inappropriate.

Cancel
No notes for slide

Transcript

  • 1. Pair Programming and XP Values ShriKant Vashishtha http://sampreshan.svashishtha.com
  • 2. Values = Roots of what we like or don’t like
  • 3. Practices and Values• Practices are evidences of values• Practices implemented in most effective way possible, shows that I value “values”.
  • 4. Pair Programming – What is it? • Better work together more quickly than either could alone. • The driver types – focus on tactics - writing clean code • The navigator - focuses on strategy - how the code fits into the overall design, refactoring, tests etc. • They switch every few hours to share perspectives and knowledge. • Knowledge sharing within the team is good and the team knows the total code base better.
  • 5. How to do it?• Pair on everything you need to maintain• Switch partners when you need a fresh perspective• Pair with different people throughout the day• Sit comfortably• Switch driver and navigator roles frequently• Collaborate and converse!
  • 6. How to do it?• Have design discussions and agree upon as a pair what’s intended to be done.• Agree on one tiny goal at a time• Rely on your partner, support your partner.• Talk a lot• Switch roles often• Write unit test first• Pay attention – don’t check your email, facebook etc• The person who knows less about the system or language should do most of the driving, to ensure that the novice stays engaged. You learn more through your fingers than through your eyes.• Ping-pong pairing
  • 7. Pairing Anti-patterns• No breaks• No pair-switching• No pairing core hours• Not communicating enough• Not listening to other solutions• Grabbing the keyboard away• Silent partner• Listening to partner, but ignoring feedback, as if they are an annoying popup in your IDE.• Egos and personality conflicts
  • 8. Force - Improve Velocity, Team!
  • 9. Shouldn’t we rather focus on effectiveness more?
  • 10. Effectiveness demands Simplicity = eliminate wasted complexity
  • 11. Value - Simplicity
  • 12. Force – Different Schools of Thoughts
  • 13. Value - Respect
  • 14. Troubles in pairing?• I’m faster on my own• Can’t pair with that guy, he’s getting on my nerves• Pair programming is too tiring• We’ve split up the work and we’ll get it done faster if we use two keyboards• There’s too much background noise• I’m just slowing her down
  • 15. Pairing Styles
  • 16. Style 1: The Commander and The Backseat Driver
  • 17. Style 1: The Commander and The Backseat Driver
  • 18. Style 2: The Rally
  • 19. Style 3: The Tour
  • 20. Style 4: Disconnected Pair or The Sleeping Navigator
  • 21. Other Values in XP
  • 22. Communication – Electronic vs face-to-face
  • 23. Facts around Communication
  • 24. Value - Feedback
  • 25. Will wait till retrospective ;). Really???
  • 26. Feedback and Continuous Integration Do painful things more frequently
  • 27. Questions