Once the documents have been generated, they can be compared with an older version of the documentation. For this purpose, Docu Performer has created an interface that allows a quick selection of the documents to be compared. You will find the Document Comparison button in the Ribbon bar. 
...
When you select click the button a new window appears where you can select the generated documentation which will be compared.
...
The result is a detailed display of the deleted, changed, or newly added objects. This allows you to quickly identify changes.
...