Technical System Landscape 

The following figure illustrates the main components required for an application-to-application (A2A) integration and the communication between these components.

 

The Solution Manager and the System Landscape Directory are used to configure and model the entire system landscape including your individual application components.

The Enterprise Services Repository and the Integration Directory are used to design and configure your A2A integration.

The Integration Server then performs all the message processing.

The Runtime Workbench is used to monitor message processing on all involved components; the Solution Manager can be used to monitor your application components.

Involved Components

For more information about the involved components, refer to the table below.

The following table gives you an overview of how to access further information:

Component	More Information
Enterprise Services Repository	Enterprise Services Repository
Integration Directory	Integration Directory
Runtime Workbench	Central Monitoring
Business Process Engine	Integration Processes
Integration Engine	Integration Engine
Advanced Adapter Engine	Advanced Adapter Engine
Adapter Engine (Java SE)	Adapter Engine (Java SE)
System Landscape Directory	System Landscape Directory

The Adapter Engine(Java SE) is only supported for the scenario Enabling Application-to-Application Processes, and for compatibility reasons only. It hosts only a subset of the adapter functionality and you should only use it if it is a precondition in your environment.

For high-availability considerations, refer to High Availability.