I have never seen an ERP system that does not have a description for a component part. I cannot therefore understand why the WTPart does not have one as well. EPMDocuments have an out of the box description, as do many other objects in the system, but WTParts do not. If you are using associations between CAD and Parts, there is then no way to transfer the description to the WTPart. Work arounds like creating an IBA on both object types and linking them instead creates a giant mess because all the table views now show the OOTB description, not your new one. If you attempt to change the table views you find that there are always other objects types that still have an OOTB description, so you either have to display both, or not show some data. There are also some places where you cannot edit the view to choose.