Create an InfoSource or DataSource based on the version of the SAP BW system that you want to write data to.
InfoSources are equivalent to target tables in the SAP BW operational data store. The logical system that you create for Informatica in SAP BW populates the InfoSource with data.
DataSources are equivalent to target tables in the PSA layer. DataSources define the metadata of the source system. Use a DataSource to transfer data to the SAP BW system.