1. Taking Flickr to
Gamma
Some things we should
have learned by now
Cal Henderson

2. Cal Henderson
Web Apps Summit, 13-14th September 2006 2

3. No scaling stuff
(Today)
Web Apps Summit, 13-14th September 2006 3

4. Book!
Web Apps Summit, 13-14th September 2006 4

5. Buy my book
(Or Theo’s)
Web Apps Summit, 13-14th September 2006 5

6. Construction workers Socially
& PE teachers acceptable
The nerd scale
Web Apps Summit, 13-14th September 2006 6

7. We’ve come a long way
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8. Lots of new stuff
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9. Not many examples
(Hello LJ)
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10. New ground
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11. Things we Things we
already knew needed to know
Something about HTML
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12. What we learned,
Wasn’t unique
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13. So how are we
different?
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14. It takes outsiders to see
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15. Some ideas, then?
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16. Lesson 1 - ?
Plan for maintenance
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17. Advance notice
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18. Disable by component
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19. Tell your users
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20. Clear escalation paths
Web Apps Summit, 13-14th September 2006 20

21. Who do I call?
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22. In-process alerts
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23. Communication!
Web Apps Summit, 13-14th September 2006 23

24. Stats tracking is hard
(and important)
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25. So many stats
So little time
Web Apps Summit, 13-14th September 2006 25

26. More graphs
Much more graphs
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27. Cacti
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28. Ganglia
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29. Web stats – usually bad
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30. Create dashboards
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31. Familiar?
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32. http://visualcomplexity.com/vc/
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33. APIs = cool
Who knew?
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34. Forces clean interfaces
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35. Regression testing
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36. Beware abuse
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37. Track usage carefully
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38. I heart (clean) URLs
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39. Never break me
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40. Careful of middle tiers
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41. Don’t navigate by URL
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42. Don’t expose auto-incs
Maybe
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43. /noun/verb/ !
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44. Hiring people is tough
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45. Good people have jobs
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46. Giving notice
Moving house
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47. Older the product,
Longer the induction
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48. Documents saved my life
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49. Release early
Release often
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50. Under construction!
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51. Perpetual beta
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52. Small increments
Visible progress
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53. Less moving parts
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54. Lightweight QA
No safety net
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55. Own the process
Not the feature
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56. Avoid branches
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57. Shared development
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58. No developer
Is an island
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59. Have good tools
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60. One touch deploy
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61. Automate everything
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62. Many tools
Componentize!
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63. Always deployable
agile
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64. Pragmatic
Make it work
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65. Beautiful code
Not a priority
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66. Disclaimers
• This stuff wont work everywhere
• Takes the right people and process
• Like XP, it doesn’t start working until you
do it all
• But then it pays off
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67. Photo credits
flickr.com/photos/fliegender/8941214/ flickr.com/photos/lichtundschatten/110813652/
flickr.com/photos/katastrophik/12650255/ flickr.com/photos/thelastminute/193918703/
flickr.com/photos/sus/32901004/ flickr.com/photos/pbo31/78184337/ flickr.com/photos/maisonbisson/109211670/
flickr.com/photos/philipbroadway/22025971/ flickr.com/photos/malcubed/41022703/
flickr.com/photos/photomonkey/12746989/ flickr.com/photos/alexander_johmann/213426525/
flickr.com/photos/redjar/123408018/ flickr.com/photos/qtr/149754419/
flickr.com/photos/sneedleflipsock/102011111/ flickr.com/photos/kevincollins/115305184/
flickr.com/photos/beeep/131604119/ flickr.com/photos/eyefruit/217393789/
flickr.com/photos/nictalopen/114705846/ flickr.com/photos/soutra/83357167/ flickr.com/photos/neil_b/106927604/
flickr.com/photos/cumisky/13166157/ flickr.com/photos/teo/5318814/ flickr.com/photos/myflickrbox/130136944/
flickr.com/photos/kk/5057390/ flickr.com/photos/colloidfarl/129252301/ flickr.com/photos/tellumo/163206518/
flickr.com/photos/andyarmstrong/48981211/ flickr.com/photos/holgalomaniac/132990249/
flickr.com/photos/junjan/37419367/ flickr.com/photos/piper/193387683/ flickr.com/photos/yogi/203336705/
flickr.com/photos/colloidfarl/36417034/ flickr.com/photos/pulpolux/11187139/ flickr.com/photos/peyri/10207629/
flickr.com/photos/paseodelsur/217105599/ flickr.com/photos/simpologist/42391997/
flickr.com/photos/mg7een/174664442/ flickr.com/photos/akash_k/125489887/ flickr.com/photos/syldavia/6289438/
flickr.com/photos/antitezo/138660912/ flickr.com/photos/jazzmasterson/3038597/
flickr.com/photos/laughingsquid/109584042/ flickr.com/photos/b-tal/103294687/
flickr.com/photos/candiedwomanire/1651870/ flickr.com/photos/faberitius/200493526/
flickr.com/photos/timdorr/242424387/ flickr.com/photos/joao/59663452/ flickr.com/photos/ratanx/99851908/
flickr.com/photos/kimberlyann/180343167/ flickr.com/photos/ennor/102259868/
flickr.com/photos/agaylon/184531423/ flickr.com/photos/ricardo_ferreira/193858876/
flickr.com/photos/elsie/5135230/ flickr.com/photos/piper/5468699/ flickr.com/photos/bigtallguy/177275929/
flickr.com/photos/roblee/106905099/ flickr.com/photos/arkangel/134456927/
flickr.com/photos/drewcipher/98083527/ flickr.com/photos/kevinsteele/103641665/
flickr.com/photos/stewart/100711553/ flickr.com/photos/bibi/146402478/ flickr.com/photos/takamp/36749900/
flickr.com/photos/skyshanghai/150177941/ flickr.com/photos/tysonneil/189721713/
flickr.com/photos/thomashawk/44950329/
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68. I work for Yahoo
Yahoo is hiring
Talk to me about it
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