SAP’s products focus on Enterprise Resource Planning (ERP). The company’s main product is SAP ERP. The current version is SAP ERP 6.0 and is part of the SAP Business Suite. Its previous name was R/3. The “R” of SAP R/3 stood for realtime – even though it is not a realtime solution. The number 3 related to the 3-tier architecture: database, application server and client (SAPgui). R/2, which ran on a Mainframe architecture, was the predecessor of R/3. Before R/2 came System RF, later dubbed R/1.
Other major product offerings include: the NetWeaver platform, Governance, Risk and Compliance (GRC) solutions, Duet (joint offering with Microsoft), Performance Management solutions and RFID. SAP offers SOA capabilities (calling it Enterprise SOA) in the form of web services that are wrapped around its applications.