VODML base types : request for enhancement of the IVOA.1.0 template model

[Patrick Dowler]

I haven't looked in detail at the SemanticConcept in VO-DML, but
adding a UCD primitive type seems like the wrong approach.

In CAOM I have a re-usable VocabularyTerm class (abstract) and I
recall that Laurent has something like that in one or more other
models. I do plan to examine SemanticConcept and see if it is usable
in place of this (on my todo list).

But surely we do not want to add a primitive type for every different
vocabulary!!

--
Patrick Dowler
Canadian Astronomy Data Centre
Victoria, BC, Canada

On Sat, 7 Feb 2026 at 06:40, Harrison Paul via dm <dm at ivoa.net> wrote:
>
>
> typo
>
> On 4 Feb 2026, at 14:47, Harrison Paul <harripa at gmail.com> wrote:
>
> It is not this reason that I do not see any particular value in an ivoa:year as it cannot conceptually be a sub-type of ivoa:timeInstant.
>
>
> it is *for* this reason….