The application platform of SAP NetWeaver is the SAP Web Application Server. It provides a complete infrastructure to develop, deploy and run platform-independent, robust and scalable Web Services and business applications. To allow this flexibility, different technologies have been established.

• J2EE - The standard of developing multi-tier enterprise application based on Java. This standard has been defined by an open community, including SAP, and has been driven forward by SUN Microsytems Inc.

• ABAP - ABAP has been developed for business application programming. One of its essential application areas is the processing of data from the central database. Many of the functions required for this are included in the language content and do not have to be programmed in ABAP itself.

• DB and OS Abstraction - platform-independence - there is huge business value in not being dependent on a specific platform. 

• Web Application Server (WAS)