Currently, you can have items that are assigned parts and items without parts attached to the same bib. This can lead to holds issues with mulitiple queues forming depending on whether patrons choose a part or just place a title hold. If even a single item has no part assigned, patrons can then place a title hold, resulting in situations where that single item is trying to fill a long list of title holds, while items with parts assigned are sitting on library shelves. It's also very easy to forget to assign a part - on some older monitors, the parts dropdown is beyond the edge of the screen.
I would like to see a checkbox or dropdown field on the bib (not the items) that basically says:
items on this bib must have a part assigned
items on this bib must not have a part assigned
items on this bib may have parts assigned, but it is not required
This would prevent the accidental omission of parts assignments, and alleviate the headaches MVLC is dealing with with multi-part DVD sets and holds.