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#NoEstimates – Javazone 2014

Lightning talk about #NoEstimates at Javazone 2014

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#NoEstimates – Javazone 2014

  1. 1. #NoEstimates 1 https://www.flickr.com/photos/aidanmorgan/3249101355
  2. 2. 2 https://www.flickr.com/photos/spidie/2533808052
  3. 3. 3 https://www.flickr.com/photos/mbiebusch/12927268235
  4. 4. #NoEstimates Definition by Woody Zuill: #NoEstimates is a hashtag for the topic of exploring alternatives to estimates for making decisions in software development. That is, ways to make decisions with “No Estimates”. http://zuill.us/WoodyZuill/2013/05/17/the-noestimates-hashtag/ 4
  5. 5. #NoEstimates — My Way… 5
  6. 6. #NoEstimates — My Way… 1. Break the work down into easy tasks* * Tasks, work items, stories, use cases, etc… 6
  7. 7. #NoEstimates — My Way… 1. Break the work down into easy tasks 2. Start working on them, and get them DONE 7
  8. 8. #NoEstimates — My Way… 1. Break the work down into easy tasks 2. Start working on them, and get them DONE 3. Create new tasks when you need them 8
  9. 9. #NoEstimates — My Way… 1. Break the work down into easy tasks 2. Start working on them, and get them DONE 3. Create new tasks when you need them 4. Track your progress 9
  10. 10. #NoEstimates — My Way… 1. Break the work down into easy tasks 2. Start working on them, and get them DONE 3. Create new tasks when you need them 4. Track your progress 5. Track the evolution of the total number of tasks 10
  11. 11. #NoEstimates — My Way… 1. Break the work down into easy tasks 2. Start working on them, and get them DONE 3. Create new tasks when you need them 4. Track your progress 5. Track the evolution of the total number of tasks 6. Predict time of completion and track prediction 11
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  13. 13. 13 Disclaimer: These data are fake!
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  26. 26. Why does it work? 26
  27. 27. Why does it work? Automatic calculation ⇔ Subjective opinion about the future 27
  28. 28. Why does it work? Automatic calculation Models and tracks the world as it is ⇔ Wishful thinking 28
  29. 29. Why does it work? Automatic calculation Models and tracks the world as it is Takes into account (some) unknowns ⇔ Final backlog assumption 29
  30. 30. There's a catch… 30 https://www.flickr.com/photos/gracec/2489976526
  31. 31. There's a catch… There's an “Estimate” in “#NoEstimates”! 31 https://www.flickr.com/photos/gracec/2489976526
  32. 32. There's a catch… There's an “Estimate” in “#NoEstimates”! 32 https://www.flickr.com/photos/gracec/2489976526
  33. 33. There's a catch… There's an “Estimate” in “#NoEstimates”! 1. Break the work down into “easy tasks” 33 https://www.flickr.com/photos/gracec/2489976526
  34. 34. “#SomeEstimates” Customers want cost projections 34 https://www.flickr.com/photos/mylesdgrant/3508435933
  35. 35. “#SomeEstimates” Customers want cost projections …internal customers too 35 https://www.flickr.com/photos/mylesdgrant/3508435933
  36. 36. #NoEstimates Resources Google Twitter: #NoEstimates Vasco Duarte's blog http://SoftwareDevelopmentToday.blogspot.com Woody Zuill's blog http://zuill.us/WoodyZuill/ Neil Killick's blog http://neilkillick.com/category/noestimates/ Henri Karhatsu's blog http://blog.karhatsu.com/ http://www.slideshare.net/filipvanlaenen/ 36 noestimates-javazone-2014

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