CAF DataSources Used in SAP BW
A DataSource is a set of logically related fields that represent data into SAP Business Warehouse (SAP BW). A DataSource could be easily mistaken with JDBC DataSource, but in terms of SAP BW Accelerator DataSource is much like a database table definition (with its columns). Each DataSource, provided by CAF represents a specific composite application data. For more information about the specifics of the DataSources provided by CAF, see:
DataSources to Access Business Object Node Attributes
DataSources for Language-Dependent Attributes
DataSources for Business Object Associations
DataSources for BI Extractor Operations of Application Services