ABAP!

ABAP (Application Business Application Programming) is language developed by SAP to cater to the needs of business entities. Several Highly Scalable applications can be developed using ABAP Workbench and custom developed SAP standard applications can be "Modified'' and "Enhanced". SAP Web Application Server ABAP provides runtime environment for running ABAP programs and also support for Java programs are provided by SAP Application Server 6.20 SAP.The integrated Java Web Application Server is Java application server (J2EE) called SAP Web AS Java.

Client/Server Configuration for SAP Systems :

SAP runs on a three-tier configuration - with atleast three servers and each layer runs on its own host - Database, Application and Presentation. There can be only one Database server but multiple presentation and application servers are possible. atabase server stores data accessed by programs running on application server which are made available to users by Presentation Server with the help of GUI screens etc..