You can use UNICOM Intelligence Professional to do the following:

To compare the items, use Metadata Model Compare.

To start Metadata Model Compare, open a .mdd file in UNICOM Intelligence Professional and then choose Compare from the UNICOM Intelligence Professional Tools menu. When the Metadata Model Compare window opens, the "Original file" settings will automatically have been set to refer to your .mdd file. For more information about using Metadata Model Compare, see Metadata Model Compare.

A metadata version is added to an interview script file each time that you activate it (see Activating an interview). You can also add metadata versions manually to an interview script file by using MDM Explorer. It is not possible to add metadata versions manually in UNICOM Intelligence Professional.