A presentation handler processes a reply from a specific request handler for the operation result or exception, and renders output appropriate for a specific channel driver. A presentation handler is instantiated by the channel handler the first time the device accesses the specific channel and is registered in the handler registry.

The abstract class com.ibm.btt.clientserver.DSEPresentationHandler, which implements the com.ibm.btt.clientserver.PresentationHandler interface, provides the base functionality of a presentation handler and is intended to be extended for new channel implementations.