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56565Re: [scrumdevelopment] Re: How many sprints?

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  • Charles Bradley - Professional Scrum Trai
    Jan 27, 2013
      Bob,

      > Assuming these epics are estimated relative to each other, no re-estimation is needed; re-estimation is usually a form of waste.

      Do you consider it waste to re-estimate a PBI when there is material new knowledge about that PBI that would materially affect the estimate for that PBI?

       
      -------
      Charles Bradley
      Scrum Coach-in-Chief
      ScrumCrazy.com




      From: Bob <bobbatemansbay@...>
      To: scrumdevelopment@yahoogroups.com
      Sent: Saturday, January 26, 2013 2:44 AM
      Subject: [scrumdevelopment] Re: How many sprints?


      Hi Greg,

      I think following George's and Avi's advice is probably the best way forward for you.

      I might just offer a brief word about Release Planning between the development team and the product owner. In general, the epics in the backlog should be roughly estimated in story points, days or weeks, whichever is most appropriate, and from that rough release dates are established. This can be done before the first sprint. Assuming these epics are estimated relative to each other, no re-estimation is needed; re-estimation is usually a form of waste.

      Take a look at Mike Cohn's book, 'Agile Estimating and Planning' and Roman Pichler's book, 'Agile Product Management with Scrum' for more information on release planning.

      Good luck,

      Bob Boyd

      --- In scrumdevelopment@yahoogroups.com, Greg Robinson  wrote:
      >
      > Hello, my Product Owner asked how many sprints will it take for the team to
      > complete several of the epics on our product backlog.  We are a brand new
      > team (only 1 sprint under our belt) and not all of the epics have been
      > decomposed into stories and estimated.  About 50% of two of our epics have
      > been decomposed into stories and three other epics havent been touched yet.
      > I understand time is fixed and scope is negotiable, but without the team
      > having determined their velocity nor finished decomposing the epics, what
      > is an appropriate response?  Any suggestions, tips, or articles are
      > welcomed.
      >
      > Thanks in advance.
      >
      > Greg
      >




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