stion Breaking down the work structure to reduce activities into smaller, more manageable tasks, useful for building accountability through assigning specific tasks to team members Finish attempt Choose Choose Bottom-up estimating The Delphi Technique Three-point Estimating Analogous Estimation Expert Judgment Parametric Estimation Relies information from similar projects to determine the activity duration, needs historical data More accurate to analogous, Scaling up or down the analogous estimate Choose in this method, the estimator determines three numbers (Optimistic, Most Likely, Pessimistic) Choose e Makes use of group intelligence to determine the activity duration, Scaling up or down the analogous estimate Choose . For projects that are complicated and more factors can influence the duration, reasonably costly AC GO Choose