ivoa: DM type system

Gerard Lemson gerard.lemson at gmail.com
Thu Apr 13 18:31:19 CEST 2017


HI Omar
Agree with most of what you write, but would like to focus on this proposal:

> Only
> To recap:
>   1. my personal Yay! to removing the ivoa model from the current VODML PR.
>

I tried arguing that we need a base model with primitive types to be able
to create models.
(Unless of course every model would define all their own basic primitive
types, something I truly hope no one wants).
So if we only have a language but no basic types we have a problem.
Now IF you're proposing to still have ivoa model and vo-dml spec go through
the process in synch there should be no problem, but if now ivoa model
would be delayed, I'd much rather keep it inside the spec.
I believe XML schema has separate parts structure and types, but both are
parts of the same spec.
Do you propose doing something like that.

Cheers
Gerard
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