This document discusses different methods for extracting data from source systems and loading it into SAP BW for analysis and reporting. It describes extracting data from R/3 OLTP systems using SAP extractors, replicating data using DataSource replication, and handling the update process. It also discusses extracting data from non-R/3 sources using third party tools and extracting remote transaction data using SAP BW Remote Cubes.

1. Data Extraction 

4. DataSource Replication for R/3 OLTP R/3 OLTP Extract Structure BW Server Transfer Structure Transfer Structure DataSource Replication

8. External Data ‘Extraction’ – Remote Cubes 