When you publish a mapping template, Mapping Architect for Visio creates a mapping template XML file and a mapping template parameter file. The mapping template parameter file contains the parameters set up in the mapping template and is located in the same folder as the mapping template file.
Modify the mapping template parameter file to provide the values for the mapping template parameters. If you want to create more than one mapping from the mapping template, modify the parameter file so that it contains as many mapping definitions as you require. Then provide the parameters values for each mapping.
The mapping template parameter file has an associated Document Type Definition (DTD) file called parameters.dtd. When you create the mappings based on the mapping template, the parameter file is validated against parameter.dtd. When you modify the parameter file, make sure that the XML file conforms to the structure of parameter.dtd.