The ILM Engine creates segments by dividing each table consistently across the segmentation group. This process organizes transactions in the segmentation group by the dimensions you associated with the group in the data classification. This method of partitioning maintains the referential integrity of each transaction.

If you purchased an application accelerator such as the Oracle E-Business Suite or PeopleSoft accelerator, some segmentation groups are predefined for you. If you need to create your own segmentation groups, you must select the related tables that you want to include in the group. After you select the segmentation group tables you must mark the driving tables, enter constraints, associate dimensions with the segmentation group, and define business rules.