Mob Programming (2016)
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This document discusses mob programming, an agile development technique where the entire team works together on the same task using one computer. It describes mob roles like driver, navigator, and facilitator. The driver focuses on typing code while listening to the navigator, who formulates ideas for the team. Roles rotate every few minutes. Guidelines are provided for mitigating emotions and ensuring visibility when mobbing with many developers. Mob programming aims to improve collaboration, knowledge sharing, and code quality.
Mob Programming (2016)
- 1. Mob Programming May 2016 Peter Kofler, ‘Code Cop’ @codecopkofler www.code-cop.org Copyright Peter Kofler, licensed under CC-BY.
- 2. Peter Kofler • Ph.D. (Appl. Math.) • Professional Software Developer for 15+ years • “fanatic about code quality” • I help development teams PETER KOFLER, CODE-COP.ORG FANATIC ABOUT CODE QUALITY
- 3. I help development teams with PETER KOFLER, CODE-COP.ORG FANATIC ABOUT CODE QUALITY ● Professionalism ● Quality and Productivity ● Continuous Improvement
- 4. Mentoring PETER KOFLER, CODE-COP.ORG FANATIC ABOUT CODE QUALITY ● Pair Programming ● Programming Workshops ● Deliberate Practice, e.g. Coding Dojos
- 6. Pair Programming ● Two programmers ● work together ● on the same thing ● at one workstation. Pair programming is a dialogue between two people simultaneously programming (and analysing and designing and testing) PETER KOFLER, CODE-COP.ORG FANATIC ABOUT CODE QUALITY
- 7. Mob Programming ● All the brilliant people ● working at the same time, ● in the same space, ● at the same computer, ● on the same thing. PETER KOFLER, CODE-COP.ORG FANATIC ABOUT CODE QUALITY http://mobprogramming.org/
- 8. Enterprise CTO not impressed by mob programming. “We often have hundreds of developers working on the same thing.” (Hacker News Onion)
- 10. Driver ● Writes code and “does not think“. (intelligent input device) ● Only listens to navigator. ● Asks for help when lost. ● Participates in discussion when not typing. ● Rotates every 4 minutes. (e.g. Coding – Commit – Rotate) PETER KOFLER, CODE-COP.ORG FANATIC ABOUT CODE QUALITY
- 11. Navigator ● Formulates the ideas of the team. ● Tells the driver what to do. ● Does not tell short-cuts (unless asked). PETER KOFLER, CODE-COP.ORG FANATIC ABOUT CODE QUALITY
- 12. The Team ● Focuses on the code. ● Does not zone out/use mobile phone etc. ● Proposes changes. ● Gives ideas. ● Asks questions. ● Might google for some API/details. PETER KOFLER, CODE-COP.ORG FANATIC ABOUT CODE QUALITY
- 13. Facilitator ● Teams new to Mob Programming might need a dedicated facilitator with experience in team dynamics. ● Does not type or discuss. ● Cares for the rules. ● Mitigates emotional aspects of mobbing. PETER KOFLER, CODE-COP.ORG FANATIC ABOUT CODE QUALITY
- 14. The Rules
- 15. 3 Simple Rules ● Driver does not think. ● Navigator formulates the ideas of team and driver only listens to navigator. ● Start with 4 minute rotation. (Volunteer will check the timer.) PETER KOFLER, CODE-COP.ORG FANATIC ABOUT CODE QUALITY I heard them first from Nancy Van Schooenderwoert, https://twitter.com/vanschoo
- 16. Sandro Mancuso's “Fast Mob“ ● Fastest driver. (We do not want to lose time for rotating or learning short-cuts.) ● Driver is not rotating. ● Driver is the one who types fastest/knows IDE best. ● Driver uses his/her best known environment. ● Constantly move forward. (If the mob does not decide, the driver starts typing and moves forward in any direction.) PETER KOFLER, CODE-COP.ORG FANATIC ABOUT CODE QUALITY http://codurance.com/2015/11/01/practicing-well-crafted-design/
- 17. Mitigate Emotional Aspects (for new/young team with strong opinions) ● Give preference (i.e. allow other approaches and see what happens) ● Stick to a given idea for a few minutes before questioning it (again). ● Objections and other/different ideas are noted, but team moves on. ● Don't discuss (too much). ● Don't shout or interrupt. PETER KOFLER, CODE-COP.ORG FANATIC ABOUT CODE QUALITY
- 18. Hints for working on the projector or large screen ● Colours (Contrast is different.) ● Font size (e.g. presentation mode) ● Line numbers ● Map references on the monitor → PETER KOFLER, CODE-COP.ORG FANATIC ABOUT CODE QUALITY Image by https://twitter.com/sf105/status/706810807301050370
- 19. Peter Kofler @codecopkofler www.code-cop.org PETER KOFLER, CODE-COP.ORG FANATIC ABOUT CODE QUALITY
- 20. CC Images ● mob https://www.flickr.com/photos/67471462@N00/446597008/ ● Bruce http://www.flickr.com/photos/sherpas428/4350620602/ ● pairing http://www.flickr.com/photos/dav/94735395/ ● driver http://www.flickr.com/photos/48694743@N00/517658329/ ● rules http://www.flickr.com/photos/mc_sensei/3935815039/ PETER KOFLER, CODE-COP.ORG FANATIC ABOUT CODE QUALITY