In order to use "Analysed Data" you must enable the views. Go to System Panel/Report Settings and enable the type of reports that you want to use. These are
1) Assignment Time This reports presents time spent in each assignee of the item 2) Passed on By This reports presents the persons the item have passed on by 3) Pickup time Presents the time from "Registration" of an item to it's "In progress" (meaning that is accepted from the second level) 4) Solution Time Presents the time from "In Progress" of an item to its Completion 5) Solved by Presents the solvers of the items 6) Status Time Present the time spent on each status 7) Total work time Presents time from registration to closing.
If you check "Enable 'On Save' Refresh, these views are updated dynamically every time an item changes. If you prefer to update these reports manualy, you can do this by pressing "refresh analyzed data..." and select the date range. Note, that this can be a lengthy process.
The first time you do this (or if you want to regenerate) you press the "(Re)generate views for reporting" button.