Re: Definition of role

On 31/05/2012 17:17, Miles, Simon wrote:
> Hello Graham,
>
>> From today's discussion, that's what I thought you meant, but why isn't that just subtyping of relations, which I believe we already allow?

I feel I'm missing something here ... I thought they (roles) were *the* 
mechanism for subtyping relations (in DM).

So, yes, it is subtyping of relations.

#g
--

> thanks,
> Simon
>
> Dr Simon Miles
> Senior Lecturer, Department of Informatics
> Kings College London, WC2R 2LS, UK
> +44 (0)20 7848 1166
>
> accounting for the reasons behind contractual violations:
> http://eprints.dcs.kcl.ac.uk/1283/
> ________________________________________
> From: Graham Klyne [graham.klyne@zoo.ox.ac.uk]
> Sent: 31 May 2012 17:11
> To: W3C provenance WG
> Subject: Definition of role
>
> Following today's teleconference, this came to me:
>
> [[
> A role is a restriction on a relationship between entities, agents and/or
> activities, which qualifies the nature of the relationship.
> ]]
>
> I think that says what's needed.  But it does need supporting by some examples.
>
> #g
> --
>

Received on Thursday, 31 May 2012 17:03:00 UTC