The connector for SAP is written in Java and consists of two parts: the vision connector framework and connector modules (the connector's application-specific component, the Connector Framework, and business object handlers). The vision connector framework provides a metadata-driven layer of abstraction to the Connector Framework used by all WebSphere business integration system adapters.
The vision connector framework extends the methods in the system-wide Connector Framework. The connector modules extend the methods in the vision connector framework and communicate with an SAP application.
Figure 1 illustrates the architecture of the connector and the relationship of the system-wide and vision connector frameworks. The visionConnector class can implement any number of connector modules.