Being implemented on top of SAP Web Application Services
SAP�s BW provides a multi-tier architecture (figure shown below), along with a
complete software development environment, system management tools and
additional functionalities such as currency conversion or security. Although it
is closely related to SAP R/3, SAP BW is a completely separate software package
which comes with automated extraction and loading facilities.
SAP BW is based on integrated metadata concept with
metadata being managed by metadata services. SAP�s BW has following layers:
- Extraction, Loading and Transformation (ELT) services layer.
- Storage services layer, with services for storing and archiving
information.
-
Analysis and access services layer, which provides access
to the information stored in SAP BW.
-
Presentation services layer, which offers different
options for presenting information to end users.
- Administration services.
- Metadata services.
