Suppose there is a single parent case (feature or bug) called "Case 1". This case has two sub-cases called "Case A" and "Case B". The parent, Case 1, has no estimate except the summation of the estimates of its sub-cases. Both Cases A and B were estimated at 1h each, elapsed 1h each and are now Closed (Implemented). However, their parent, Case 1, remains open. Case 1 never had its own estimate and really only existed to represent a high-level requirement and to group all its sub-cases. Since all the sub-cases are closed, how does Evidence-Based Scheduling (EBS) handle this situation?
Does EBS add Case A and B to the estimator's historical track record because they are closed even though their parent case is still open?
Or must the parent case also be closed in order for EBS to start factoring Cases A and B into its predictions for this estimator's completion probabilities?