Re: Named Individuals of SubClasses

On  2013-Jul-15, at 04:08, Renato Iannella <ri@semanticidentity.com> wrote:

> One aspect of the paper that could help us in the current ODRL Ontology design about Actions being Named Individuals or SubClasses of Action...
>
> Section 4.6 talks about ExtractChar being a specialisation of Extract (with a constraint).
>
> Hence ExtractChar can be modelled as the {1} Extract action _with_ a Constraint of "characters <= 100" (for example).

So a subclass can model the fact that ExtractChar is a specialisation (in some respect) of Extract, but we don't have the grammar to model the fact that the constraint applies in any meaningful way, so I'm not sure it's necessarily to do it that way (in particular, we can't really say anything except that it's a subclass: it might be more constraining, it might be less constraining, there's way to infer that).

> Hence, we don't really need to define the ExtractChar action, with the above.
>
> But..if the ONIX community wanted such a concept (where this came from), then they could define a new action with {1} above.
>
> Question, can  this be done with our Actions as Subclasses and/or Named Individuals ?

Right now, I'm not really seeing a big justification to use subclasses (with potential added complexity that they bring) over individuals… though I don't have a particularly strong preference.

Regarding the other part of http://www.w3.org/community/odrl/wiki/Feedback_from_Victor_6_July_2013#11._Actions_as_classes_or_actions_as_individuals. ...

my sense is that it would make the most sense to be explicit in the spec that in expressions in which it's valid to do so, where the subject of something can be used as the ODRL 'uid', the same applies to an Action's 'name'.

M.

--
Mo McRoberts - Analyst - BBC Archive Development,
Zone 1.08, BBC Scotland, 40 Pacific Quay, Glasgow G51 1DA,
MC3 D6, Media Centre, 201 Wood Lane, London W12 7TQ,
0141 422 6036 (Internal: 01-26036) - PGP key CEBCF03E



-----------------------------
http://www.bbc.co.uk
This e-mail (and any attachments) is confidential and
may contain personal views which are not the views of the BBC unless specifically stated.
If you have received it in
error, please delete it from your system.
Do not use, copy or disclose the
information in any way nor act in reliance on it and notify the sender
immediately.
Please note that the BBC monitors e-mails
sent or received.
Further communication will signify your consent to
this.
-----------------------------

Received on Monday, 15 July 2013 08:19:42 UTC