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SAP BW Business Warehouse
- Architecture -
Page 4 of 10
4.0 Building SAP BW into multi-tier
architecture model in Business Services
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.
Components of BW architecture
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.
Figure: Multi-tier Architectural Pattern
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