Thanks for the respone, Mike! If other "built-in" parts of the app use business objects, that's fine. Unfortunately, since we're interfacing with a back-end app, we can't really enforce the business rules on our objects at the client level.

It sounds like we can use MM forms and Security/Localization business objects without requiring our main entity objects to use them. Hopefully that approach will work.

We're not giving up on the others yet - but it hasn't been a clean approach since we don't have access to the rules before a save.

Thanks!

Jeff