The easiest way to migrate your DOS application would be to use the built-in migration tool found in 7.2 (if your DOS application is in version 4 or earlier, you will need to download and install a version of DataEase for DOS 5.53, as the migration tool only ports applications built in 5.x onwards, to 7.2).

As a result of using the migration tool in 7.2, you will get the following:

-relationships;
-forms;
-data (at the time of performing the migration);
-users;
-imports.

Finally, you will need to re-design/layout/apply styles to each field in your FORMS, create your reports & procedures and ensure you have throughly tested the new application before going LIVE.