Enabling Application-to-Application
Processes 
This section provides you with information about administration and maintenance tasks specific to an application-to-application (A2A) scenario. It also refers you to the tools and documentation required to perform these tasks.
For more
information about A2A scenarios, see 
Enabling
Application-to-Application Processes.
Technical System Landscape
The technical system landscape illustrates the main components required for this scenario and the communication between these components.
Prerequisites
The main prerequisite for A2A scenarios are the following SAP NetWeaver usage types:
·
Application Server
(AS) ABAP and Java
These usage types must be installed and configured before you can use the A2A scenario.
For an overview of additional tools and engines required specifically for an A2A scenario, see Prerequisites.
Tasks
In addition to the
general tasks required for the administration of SAP NetWeaver usage types AS ABAP, AS Java, and
PI, tasks specific to A2A scenarios are also required.
For an overview of these tasks, see Tasks.