Is it possible to split out estimation history by case category type? If it isn't, I would like to request it as a feature.
The value of this might not be immediately obvious when the standard workflow case categories are used. However, we are planning to use a custom workflow, with a different set of category types. Inherent to these categories will be that some are more complex and less predictable than others. Because of that, we expect that for all users, there will be poorer estimation accuracy for some category cases than others, and the estimation learning curves will also therefore differ between categories.
If we can capture and analyse estimation history separately by case category type, we would expect great gains in project planning. Consider this example: The users working on cases for a milestone have estimation histories primarily based on working on cases from the "more predictable" case categories. So their estimation accuracy is pretty good. However, this milestone has a higher-than-average proportion of cases from the "less predictable/more complex" case category types. In this situation, the users' estimation history/accuracy will provide an overly optimistic estimation of how long it will take them to complete the cases assigned to the milestone, as their "overall average estimation across all case category types" is used. However, if we had been able to take into account the fact that these users will be working on cases where their estimation history is less accurate, then the estimated milestone completion dates would be more reliable.