You use the UDAs tab to create, assign, and unassign user-defined attributes (UDAs).
Like attributes, UDAs are used to retrieve data by categories. Unlike attributes, UDAs have no built-in functionality. However, UDAs can be assigned to dense and sparse dimensions, whereas attributes can be assigned to only sparse dimensions. For a detailed comparison of attributes and UDAs, see the Oracle Essbase Database Administrator's Guide.
The tab displays the following lists:
UDAs Assigned to selected member names—If a UDA is assigned to only one member, the member name is displayed next to the UDA. If a UDA is assigned to multiple members, the number of members is displayed next to the UDA.
UDAs Assigned in dimension-name Dimension—If double-click a UDA or select multiple UDAs and click the Assign button, the UDA or UDAs are assigned to the selected members and, thus, are added to the Assigned list.
In the text box, you can enter the name of a new UDA. Then, you can click the Assign button to assign the new UDA to the selected members.
“Creating UDAs” in the Oracle Essbase Database Administrator's Guide