1. This term is used by Oracle Daily Business Intelligence.
Dimensions objects are the values by which you can aggregate and filter data in a report, such as by a particular sales group or location. Dimensions are logical groupings of related dimension objects. For example, the City, State, and Country dimension objects all belong to the Geography dimension.
2. Dimension Object in OBIEE
In Siebel Analytics, this is called Attribute or Logical Column:
In a business model, a dimension represents a hierarchical organization of logical columns (attributes) belonging to a single logical dimension table.
Attributes can be associated with a logical level…
– From Siebel Analytics Server Implementation Guide v7.8.2