You want to map business processes in a distributed system landscape and you want the mapping to be independent of changes to the physical servers of the systems involved. For this reason, you assign a business system name to the technical systems in the SLD. The business system describes the semantics of a system or a client in an SAP system.
To implement the business processes, you must know which software components are available in which business systems. A business system must be assigned to each technical system at configuration time at the latest.
When you implement a business process in a distributed system landscape, you determine the business system in which the particular process step runs and which software component executes the process steps. If the business system changes between two consecutive process steps, the sender software component must provide all the data. This data is required for the subsequent process step with an outbound interface.
This data is sent to the receiver business system, where it is processed using an inbound interface. Therefore, each time data is transferred between two systems, you must identify the sender outbound interface and the receiver inbound interface. If SAP Process Integration is used to integrate the systems, the document is converted from the format in which it is sent into an SAP PI XI-Message Protocol, an XML based message format. Within SAP Process Integration, the document structure is mapped to the structure of the inbound interface (structure and value mapping) and is converted to the format of the target system.
Business Systems in the SLD
To define and display the business systems in the SLD, choose the Business systems link on the initial screen of the SLD, and choose New Business System or select an entry in the list of existing business systems. Note that you can also apply filters to retrieve a limited list of defined business systems.
