The three metadata layers are an important concept of the BI Server. Which statement is
incorrect?
A.
The physical layer defines the objects and relationships that the Oracle BI Server needs to write
native queries against each physical data source.
B.
Separating the logical of the application from the physical model provides the ability to federate
multiple physical sources to the same logical object.
C.
The model and mapping layer define the business or logical model of the data. This layer
determines the analytic behavior seen by users.
D.
The presentation layer defines the relationship that is needed to create the DML.
Explanation:
The relationship is defined at the model and mapping layer.
Note:
At the highest level, an OBIEE Metadata Repository includes three layers of information:1.
First, a Physical layer is defined. The metadata layer identifies the source data.
2.Second, a Business Model and Mapping layer is defined. This metadata layer organizes the
physical layer into logical categories and records the appropriate metadata for access to the
source data.
3.Finally, the Presentation layer is defined. This metadata layer exposes the business model
entities for end-user access.
D