Re: GRDDL and OWL/XML

On Tue, 2008-05-13 at 17:50 +0200, Bijan Parsia wrote:
> On May 13, 2008, at 3:59 PM, Dan Connolly wrote:
> [snip]
> > Yes, I remember, but I am not persuaded. Reference
> > implementations are a good thing when we can manage them.
> 
> I would hazard that this perspective is not widely shared by the  
> membership of the W3C. I've often heard this presented  
> *axiomatically* (i.e., as a basic principle). Furthermore, I'm really  
> skeptical that the W3C has the resources to be the steward of  
> reference implementations...esp. when having a *comprehensive* test  
> suite is (correctly) seen as far beyond the typical resources of a  
> working group.
>
> In any case, I think that that in a standards body, the argument  
> *for* reference implementations (esp. when that's not part of the  
> culture) is the one that needs support, not the contrary. Thus, it is  
> you who must persuade me :)

I stipulate that for OWL as a whole and for many/most things
W3C takes on, a reference implementation is not cost-effective.

The question I see is whether the OWL/XML->RDF/XML transformation
is sufficiently simple that the benefit of plugging into general
purpose GRDDL-aware agents is worth the cost of developing and
maintaining a W3C-endorsed implementation.

I leave it to the OWL WG to decide whether it is.

[...]
> > I just haven't seen a good reason to make
> > an exception in this case.
> [snip]
> 
> I, of course, believe I've provided many excellent reasons. Thus far  
> I've seen *no* substantive, argued out case for it.

Perhaps I overstated my case; you did argue that the transformation
is sufficiently complex that it would be an undue burden on the
WG to provide it, and if the rest of the WG agrees, then that's
reason enough.

I'm having trouble seeing much value in using GRDDL without
an executable transformation online; but I gather you do and I
suppose the cost of choosing a URI for the transformation and linking
it from the namespace document is pretty small, so if that's what
the OWL WG chooses to do, very well.

-- 
Dan Connolly, W3C http://www.w3.org/People/Connolly/
gpg D3C2 887B 0F92 6005 C541  0875 0F91 96DE 6E52 C29E

Received on Tuesday, 13 May 2008 16:35:08 UTC