1.8.2 External System Maintenance

An external system needs to be defined that communicates with the Integration Gateway. Below are the details requiring inputting while creating the external system.

Table 1-1 External System Maintenance

Field	Description
External System	Specify a name for the external system. This should be the same as the Source in an incoming message.
Description	Specify a brief description for the External System.
Request	A way needs to be defined in which the external system should correlate its request message with the response message. Message ID can be chosen of a request message as the Correlation ID in the response message. Alternatively, user can choose Correlation ID of a request message and maintain it as the Correlation ID of the corresponding response message.
Request Message	User can choose the Request message to be Full Screen or Input Only. If you select Full Screen as the request message, the response message also displays Full Screen.
Response Message	User can choose the Response message to be Full Screen or Record Identification Msg.
Default Response Queue	You can define a response queue for each of the In Queue’s through which the External System communicates with application. Define a valid queue name as the Default Response Queue.
Dead Letter Queue	If the messages received are non-readable, such messages are directed to Dead Letter Queue defined for the external system.
XSD Validation Required	Select this box to indicate if the request message should be validated against its corresponding XSD.
Register Response Queue Message ID	Select this box to indicate if the message ID provided by the Response Queue should be logged when a response message is posted into the queue.