You can create message maps either in the Application Development view of the IBM® Integration Toolkit, or from a Mapping node in a message flow.
A message map is a graphical data map.
The physical representation of a message map is a .map file.
You can use any of the following methods to start the New Message Map wizard and then create a message map:
A message map is created as a .map file.
In the Application Development view, the message map is displayed under a Maps category. Maps are organized by namespace.
Edit the message map, and define transformations between the input message assembly and the output message assembly. For more information, see Mapping input to output elements manually.