Hi Elizabeth,

It is possible to use the Conformance Checker on only a certain part. You could for instance enable the following filter:

It will filter for the Subprocess that starts with the specified activity A and ends with a defined activity B. FILTER PU_FIRST ( Case Table, Activity Table.Column Activity Name ) = Activity A AND PU_LAST ( Case Table, Activity Table.Column Activity Name ) = Activity B 

Hope this helps!