How would first + last name work, when
a) you have multiple first names
b) you have multiple last names
c) you have only one "name" -- http://wookware.org/name.html

In case a, all first names would probably be in a string separated by spaces, same for multiple last names.
In case c, I guess only the last name would be set maybe.

I have been only working with the KContacts based vcard backend, where givenName and FamilyName could be mapped directly. I'm not quite sure what KContacts does in this cases though.

In D22599#499008, @pino wrote:

How would first + last name work, when
a) you have multiple first names
b) you have multiple last names
c) you have only one "name" -- http://wookware.org/name.html

As I see it, this is in case the user/front-end needs to treat them separately. Applications shouldn't put them together, that's why there's a separate NameProperty already.