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SAP® BW: A Step-by-Step Guide by P.E. Henry Fu, Ph.D. Biao Fu

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Appendix B. SAP Basis Overview

BW uses the same R/3 Basis 3-tier architecture. In this overview, we introduce basic concepts of SAP Basis 3-tier architecture, such as work processes and memory management.

SAP Basis 3-Tier Architecture

The SAP Basis 3-tier architecture consists of presentation front ends, application servers, and a database server, as shown in Figure B.1.

SAP BASIS 3-TIER ARCHITECTURE

Figure B.1. SAP BASIS 3-TIER ARCHITECTURE

Presentation Interface

The SAPGUI interacts with an application server using an SAP presentation protocol, where generic GUI descriptions, instead of prepared screen images, are exchanged. This interaction results in a compact data stream, consisting ...

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