02. What is means by R/3

What is means by R/3

R/3 means three layers are installed in Different system/server and they are connected with each other.

01. Presentation Layer : This  is the layer form where end user works on sap system by using sap gui or web gui.

02. Application Layer : On this layer dispatcher distribute the work load to the different work processes like Dialog , background,  spool, update, and enqueue and makes the job done.

03. Database Layer : This is the layer where it contains three buffer  D/B buffer, SQL buffer and Redo log buffer and a Actual data base where the committed data is stored

SAP AG: The Company behind R/3

SAP AG was founded in 1972 by four former IBM employees. The company headquarters are based in Walldorf, a small German town.

The company name, SAP, stands for Systems, Applications and Products in Data Processing. After the introduction of SAP R/3 in 1992, SAP AG has become the world's leading vendor of standard application software.

R/3 Release

3.0 , 3.1 , 4.0 , 4.5 , 4.7E , ECC5 , ECC6 with EHP Packs.