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planning poker

planning poker

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    planning poker planning poker Presentation Transcript

    • Planning Poker
      Spredfast 2011
    • Planning Poker
      Planning Poker is attributed to Greening and is fairly a recent development (2002)
      Planning Poker combines expert opinion, analogy, and disaggregation into a fun approach to estimating that results in quick, unambiguous estimates.
      Participants in Planning Poker include the entire development team (Developers and QA)
    • Story Points
      Used to denote a name of the estimating unit
      Derived from calling a unit of work a user story
      Based on a combination of size and complexity of the work
      Produces Unitless but numerically relevant numbers
      A 10 point story would take twice as long as a 5 point story
    • Story Points
      Have three key benefits
      Forces the use of relative estimating
      Focuses us on estimating the size, not the duration
      Puts estimates in units we can add together
      Uses Fibonacci sequence – 1, 2, 3, 5, 8, 13, 21, …
    • Planning Poker - Steps
      Each estimator is given a deck of cards, each card has a valid estimate written on it
      Customer/Product owner reads a story and the team briefly discusses
      Each estimator selects a card that’s his/her estimate
      Cards are turned over so all can see them
      Discuss Differences (especially outliers)
      Re-estimate until estimates converge
    • Planning Poker – Why it Works
      Those who do the work, will estimate the work
      Estimators are required to justify their estimates
      Focuses most estimates within an approximate one order of magnitude
      Combining of individual estimates through group discussion leads to better estimates
      Estimates are constrained to a set of values so we don’t waste time in meaningless arguments
    • Planning Poker – Side Effects
      Greater understanding of work to be completed
      Expectation setting
      Implementation hints
      High Level architecture and design discussion
      Ownership of estimate