The Presentation layer is where you create the customized, secure, role-based views of a business model to users.
Presentation layer views are called subject areas. A subject area can be identical to your business model, or you can provide smaller, role-based subject areas that show a single subject or that support a business role. By grouping various tables, columns, attributes, and so on to form the different subject areas, you can organize your content in a way that makes sense for your users.
The subject areas are available in the Presentation Services and in Answers, enabling users to create Analysis over the metadata. For additional information about analyses and Answers, see the Oracle Business Intelligence Enterprise Edition.
After you create the Business Model and Mapping layer, you can drag entire business models to the Presentation layer in the Administration Tool. Alternatively, you can create subject areas and other Presentation layer objects manually.
If you are using an existing Oracle BI Applications repository and have customized its content, you can perform a manual merge of the existing customized repository with the new Oracle Financial Management Analytics repository received with Oracle BI Applications. See Merging Repositories
For detailed information, see the Oracle® Fusion Middleware Metadata Repository Builder's Guide for Oracle Business Intelligence Enterprise Edition.