Many transformations have one group of input ports and one group of output ports. You do not have to specify the group with which to associate a rule. Some transformations can have multiple input or output groups.

You can use the following multi-group transformations in a mapping template:

When you create a rule on a link for a multi-group transformation, specify the group to which you want to associate the rule.

For example, a Router transformation has one input group and can have multiple output groups. You create a link from a Source Qualifier transformation to a Router transformation and a link from the Router transformation to a target definition. When you create a rule on the link from the Router transformation to the target definition, specify the Router group to associate with the rule.

When you create groups for a transformation, Mapping Architect for Visio adds the group name enclosed in curly brackets ( {} ) to any rule associated with a group.

For example, if you create an All Ports rule in a link that connects from a Router transformation, Mapping Architect for Visio adds the router group name in front of the rule: