regarding ALTTYPE [was RE: vo-dml in votable]

[Laurent MICHEL]

this a draft, to be deleted

Le 20/03/2015 17:49, Laurent Michel a écrit :
> Hello everybody,
>
> I'm joining the discussion very late and I apologise for that.
>
> I've a general question about the DMs we are talking about.
> Reading the last threads I do not see any formal constraint on them.
> Did I miss something, or are we really talking about something which can
> be applied to any DM?
> I do not see if (1) the models mentioned in the discussion are supposed
> to be recommended by the IVOA or if (2) they are supposed to derive from
> a recommended model or if (3) they are totally free.
> I think that clarifying this question could help (myself at least)
> because considering models as abstract entities not related to our
> background is a bit confusing.
>
> Let me express some toughs not too much iconoclast hopefully.
> Case (1): If our model is one the recommended ones, it has its own
> identifier and we don't need to have more that one TYPE since VO
> compliant clients are supposed to comfortable with the VO vocabulary.
> Case (2) The model is derived from a recommended one, then same VO
> compliant clients as before  just have to know the "super" IVOA model
> to  do their job. More specialised client (guru at some stage) could do
> their job without reference to the parent model (as Omar sad).
> Case (3) I'm not sure that models defined out of the VO DM
> standardisation effort can are in their place in an interoperability
> whatever the client guruness.. unless the are built with component taken
> out from standard DM in which case, we fall in the case (2)
>
>
>
>
>
>

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