Writing a 3270 bridge exit program
The 3270 bridge provides an interface so that you can run 3270-based CICS® transactions without a 3270 terminal. You can write a program that receives intercepted terminal commands in the bridge environment.
The bridge exit provides the mechanism by which data needed to run a 3270 transaction can be sent and received from an external resource. For example, you can use IBM® MQ commands in a bridge exit so that CICS can get and put messages on IBM MQ queues.
For a detailed description of the 3270 bridge exit and its interfaces, see Introduction to the 3270 bridge.