We are also implementing ePDM and have an issue with UG files. I hope you can shed a little light on the subject. From your email, it sounds like you are switching over to Solidworks. Are you still going to use UG? I am the sole UG user in our company. I have found that Enterprise and UG dont like each other too much. The revisions in Enterprise will not show up in the assembly navigator in UG. Without this visual, I have no idea what revision I am working with. This worries me. Are you doing something different with your UG files or Enterprise integration? If your no longer using UG, then maybe this is not a concern for you.