A universe is a semantic layer of abstraction that exists between BusinessObjects Enterprise and the data in your organization's database.
Universe Builder allows you to create universes from XML metadata and Oracle Analytic Services.
Universe data sources can be multi-dimensional objects (dimensions, measures, details), enabling the end user to analyze the data without needing to know the details of the underlying database structure. Once you start Universe Builder, you connect to a metadata source, then using a universe creation wizard, map metadata structures to equivalent classes, objects, dimensions, and details, used in a standard BusinessObjects universe.
You can create universes from metadata sources with both Universe Builder and Business Object - Universe Designer. Universe Builder is a stand-alone product that provides an independent user interface for universe creation from metadata sources. Designer is used for the universe generation at the end of the creation process.