- From: Jonathan A Rees <rees@mumble.net>
- Date: Sun, 1 Apr 2012 17:05:10 +0200
- To: Michael Brunnbauer <brunni@netestate.de>
- Cc: public-lod community <public-lod@w3.org>
On Sat, Mar 31, 2012 at 8:45 PM, Michael Brunnbauer <brunni@netestate.de> wrote: > > Hello Jonathan, > > On Sat, Mar 31, 2012 at 10:54:09AM -0400, Jonathan A Rees wrote: >> > I have a question: Can two different entities have the same representation ? >> I've never heard anything say anything that would rule this out. > > Hmm... so from a 200 statuscode and HR14, I can conclude that I have > a representation of it, that is is an IR and therefor has a representation > that conveys the essential characteristics of it (definition of IR at > http://www.w3.org/2001/tag/doc/uddp-20120229/), but not that the > representation I got actually is a representation that conveys the essential > characteristics of it ? Well not necessarily. The problem is that 'representation' has at least three different meanings in these discussions. There's (1) the REST / AWWW glossary / HTTPbis definition, the record of the state of something, which I take to mean that descriptions, as well as depictions, content, etc. are representations. There's (2) the usage where it means expression or encoding of information, similar to what I call "instance" or TimBL calls "content", which would be a special case of (1). (2) shows up in RFC 2616 and in parts of AWWW. Then there's 'representation' as (3) whatever you get in a 200 response, what I call "nominal representation". (1)=(3) if the manner of 'representing' can be idiosyncratic to each resource. So you have to be careful which sense you mean. Most of the specs are pretty murky on this, and that's part, maybe most, of the reason why the conversation is so incredibly painful. Jonathan > Regards, > > Michael Brunnbauer > > -- > ++ Michael Brunnbauer > ++ netEstate GmbH > ++ Geisenhausener Straße 11a > ++ 81379 München > ++ Tel +49 89 32 19 77 80 > ++ Fax +49 89 32 19 77 89 > ++ E-Mail brunni@netestate.de > ++ http://www.netestate.de/ > ++ > ++ Sitz: München, HRB Nr.142452 (Handelsregister B München) > ++ USt-IdNr. DE221033342 > ++ Geschäftsführer: Michael Brunnbauer, Franz Brunnbauer > ++ Prokurist: Dipl. Kfm. (Univ.) Markus Hendel
Received on Sunday, 1 April 2012 15:05:39 UTC