I just got the structure of the existing PDB

please see PDB Mysql Struture Dump which should be converted to the Plone Interface:

I made a UML diagramm how it could work:

One thing is that we combine all tables of externals, patches, abstraction to one and put in an selection from a Vocabulary which is administrated with The Vocabulary Manager.

The other thing is I dropped the table URLS, instead there is an entry URL which can be used in the entries or be superceded by the Library URL.

Anyway I dont know what todo with the Persons... but see yourself....

The UML diagrams I made and the Product autogenerated where the model is included. I used Poseidon UML 3.0 from http://gentleware.de/ community, since it seems to work best, but its a monster...

Here is the Zope Product autogenerated with the modelfile included:

PDDatabase.tgz

The graphics: