You can rename ports in sources, targets, and transformations. To rename a port in a source, target, or transformation, double-click the port, and type in the new name. The Designer propagates the new name to the mappings and mapplets that use this source, target, or transformation. You can rename ports in the following Designer tools:
Source Analyzer.
To rename a port in a source.
Target Designer.
To rename a port in a target.
Transformation Developer.
To rename a port in a reusable transformation.
Mapplet Designer and Mapping Designer.
To rename a port in a non-reusable transformation. You can propagate the new name to other non-reusable transformations that access this port through the Designer.