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what_alternative_estimation_approaches_are_there [2019/01/09 14:43]
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what_alternative_estimation_approaches_are_there [2019/01/21 09:25] (current)
Hans Samios
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   * Cycle time and throughput: More generally, using cycle time and throughput information directly can help.   * Cycle time and throughput: More generally, using cycle time and throughput information directly can help.
   * XP based: 0, 1, 2, 4, split. Used to help encourage smaller pieces of work.   * XP based: 0, 1, 2, 4, split. Used to help encourage smaller pieces of work.
-  * High / low estimates: The approaches generate a single number to estimate size of story as well as velocity for the team, usually an average. When forecast ​the future we should be talking about a range of possible values rather than a single number as the future is not certain.+  * High / low estimates: The approaches generate a single number to estimate size of a Story. When forecasting ​the future we should be talking about a range of possible values rather than a single number as the future is not certain.
   * Probabilities:​ A more rigorous approach is to use actual probabilities to talk about what might happen. See [[blog:​why_a_plan_based_on_average_velocity_will_fail|Why a Plan Based on Average Velocity Will Fail?]] for the thinking here.   * Probabilities:​ A more rigorous approach is to use actual probabilities to talk about what might happen. See [[blog:​why_a_plan_based_on_average_velocity_will_fail|Why a Plan Based on Average Velocity Will Fail?]] for the thinking here.
   * Dependencies:​ Estimation approaches that directly factor a understanding of dependencies to drive better information. See [[blog:​why_should_we_work_harder_to_eliminate_the_effect_of_dependencies|Why Should We Work Harder to Eliminate the Effect of Dependencies?​]] for some thinking here.   * Dependencies:​ Estimation approaches that directly factor a understanding of dependencies to drive better information. See [[blog:​why_should_we_work_harder_to_eliminate_the_effect_of_dependencies|Why Should We Work Harder to Eliminate the Effect of Dependencies?​]] for some thinking here.
-  * Expansion: Estimation approaches that also factor in expansion of scope, since in most cases scope increasesrather than decreases as the team implements and the customer sees what is possible.+  * Expansion: Estimation approaches that also factor in expansion of scope, since in most cases scope increases rather than decreasesas the team implements and the customer sees what is possible.
   * Utilization / WIP: Understanding the impact of high utilization on estimates. See [[why_does_high_a_utilization_rate_make_it_impossible_to_create_good_estimates|Why Does a High Utilization Rate Make It Impossible to Create Good Estimates?​]] for more information.   * Utilization / WIP: Understanding the impact of high utilization on estimates. See [[why_does_high_a_utilization_rate_make_it_impossible_to_create_good_estimates|Why Does a High Utilization Rate Make It Impossible to Create Good Estimates?​]] for more information.
  
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