Open Transaction Designer to capture the information you need to interact with the host program. This information is contained in the host transaction and includes the program name (CICS), or the transaction id (IMS), host program data structure, and the copybook input and output layout.
You must create or import at least one host transaction before you can move to step two; creating a client operation.
The client operation contains the client schema that describes how clients will interact with your host transaction project. The client schema has one input element and one output element which reference a data structure, defining the mapping of the input and output parameters between the interface and the data structure.
|Build a Resuable Interface Object|
|Configuring Your Run-time Environment|