SAP BusinessObjects - Semantic Layer
Information design tool 4.0: Set aggregation navigation in a business layer
After you have defined the aggregate aware objects in your business layer, the next step to setting up aggregate awareness in a universe is to specify which objects in the business layer are incompatible with each aggregate table. An object is considered incompatible if it is either at a lower level than the aggregate table, or is unrelated to it.
In this tutorial, you will set aggregate navigation to define incompatible objects for two aggregate tables.