This looks great. My only question is whether there is a need to define two different types of assertions about APCs. One is the institutional assertions, supported here, which seems fine although its not immediately clear to me exactly how multiple institutional records for the same article get reconciled. Presumably they're just handled as a list.
One thing I can see a publisher doing is checking through the records here to see if there are any egregious errors and wanting to correct that. A publisher might also want to push list price or billed price information and/or billing addresses into the system. I'm guessing a lot of this is out of scope for the project but I think it could be useful to consider enhancing the data model to have some form of "role" for institutions making APC assertions. This could be added to the jm:apc node at the same level as the institutional identifiers.
I don't think the roles would be "university" and "publisher" but "bill sender" and "bill payer". That is there are two classes of assertion, those from organisations sending the bills and those from organisations paying them.
This looks great. My only question is whether there is a need to define two different types of assertions about APCs. One is the institutional assertions, supported here, which seems fine although its not immediately clear to me exactly how multiple institutional records for the same article get reconciled. Presumably they're just handled as a list.
One thing I can see a publisher doing is checking through the records here to see if there are any egregious errors and wanting to correct that. A publisher might also want to push list price or billed price information and/or billing addresses into the system. I'm guessing a lot of this is out of scope for the project but I think it could be useful to consider enhancing the data model to have some form of "role" for institutions making APC assertions. This could be added to the jm:apc node at the same level as the institutional identifiers.
I don't think the roles would be "university" and "publisher" but "bill sender" and "bill payer". That is there are two classes of assertion, those from organisations sending the bills and those from organisations paying them.