SAP BW DataSource
is the object containing all the metadata to bring data from an external system
to SAP BW. SAP delivers a list of standard DataSources to bring data from SAP
ERP to BW. Other types of DataSources can bring data in from flat files,
external databases, …
The data loads are launched by means of an InfoPackage,
which triggers the necessary programs in BW and SAP/other source systems to
transfer the data to BW.