Oracle® Business Intelligence Server Administration Guide > Creating and Administering the Business Model and Mapping Layer in an Oracle BI Repository >
Process of Creating and Administering Dimensions
Each business model can have one or more dimensions, each dimension can have one or more logical levels, and each logical level has one or more attributes (columns) associated with it.
NOTE: The concept of dimensions for a multidimensional data source is less complex than for dimensions in other data sources. For example, you do not create dimension level keys. A dimension is specific to a particular multidimensional data source (cannot be used by more than one) and cannot be created and manipulated individually. Additionally, each cube in the data source should have at least one dimension and one measure in the logical layer.
The following sections explain how to create dimensions: