The back-end resource, Sample Server, is delivered with the ADK as a Java executable. It simulates a banking system. The Sample Server and the adapter communicate with each other using the TCP/IP protocol. You should run the Sample Server as a separate process on any networked computer.

The Sample Adapter uses a document-based messaging scheme to exchange data with the Sample Server. SampleClient.jar, which is also included with the ADK, provides the classes necessary to implement these messages. These messages provide access to a set of business functions, queries, and alerts that are supported by the Sample Server. There is also a metadata repository lookup feature that allows the adapter to retrieve a list of the available functions, queries, and alerts, and to obtain details of the data fields used in each one.