Maintenance - Maintain descriptor trees

To open the maintenance form choose Administration -> Database ... -> Maintenance ... from the menu and select the Maintain descriptor trees tab. With the descriptor trees the assignment of descriptors to certain projects is done. Furthermore it is possible to administer the recommended statistical measures and modifiers for quantitive descriptors and the recommended modifier and frequency values for categorical descriptors. If a description item references entities that are not correctly assigned in the descriptor trees, this can be seen in the continious view. In the tab Missing description entities you can easily find and fix such kind of inconsistencies. Furthermore a centralized function to administer Statistical measures,  Modifier values and Frequency values is provided. Finally superfluous entries may be deleted by using the Clean descriptor trees tab.