SAP NetWeaver Application Server: Difference between revisions

Revision as of 02:34, 9 January 2009

Revision as of 03:41, 18 January 2009

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==Architecture==

The architecture of SAP Web Application Server can be separated into five areas:

; Presentation layer : In the presentation layer, the user interface can be developed with [[Java Server Pages]] (JSP), [[Business Server Pages]] (BSP), or with [[Web Dynpro]] technology. The underlying business layer provides the business content in Java or ABAP.

; Business layer : The business layer consists of a J2EE certified run-time environment that processes the requests passed from the [[ICM]] and dynamically generates the responses. The business logic can be written either in ABAP or in Java based on the J2EE standard. Developers can implement business logic and persistence with [[Enterprise JavaBean]]s (EJB) using the J2EE environment. Developers can also access the business objects of applications running in the ABAP environment to benefit from their business logic and persistence.

; Integration layer : The local integration engine is an integral part of SAP Web AS and allows instant connection to [[SAP XI]]. The local integration engine provides messaging services that exchange messages between the components that are connected in SAP XI.