[Standards] whiteboarding and shared editing

Peter Saint-Andre stpeter at jabber.org
Wed Aug 15 17:54:09 UTC 2007


Dave Cridland wrote:
> On Wed Aug 15 17:40:22 2007, Ian Paterson wrote:
>> Greg Hudson wrote:
>>> A generic XML editor isn't going to know much about the semantics of the
>>> document it is editing.  It's not necessarily going to be a good
>>> framework for a whiteboarding application, any more than emacs is a good
>>> foundation for Photoshop.  They both edit files, but...
>>>   
>>
>>
> [...]
> 
> 
>> I would have thought that, a *very low level* synchronised XML editing
>> protocol suitable for SVG documents could be very similar to, for
>> example, one for XHTML documents.
>>
>> 1. What significant differences do people see between two such
>> *lowest* level protocols?
>> 2. Could those differences be optional parts of a single low-level
>> protocol?
>> 3. What specific real-world disadvantages do people see if we use a
>> single low level building-block protocol?
> 
> I have to say, my suspicion is that these kinds of questions would be
> far easier to answer if we developed an SVG protocol and an XHTML
> protocol, then looked for points of similarity. Trying to create an
> abstract protocol out of nowhere is going to be tricky, and as Greg
> suggested, quite possibly it'll go nowhere.

Quite possibly. :) And yes it would be good to have two or more examples
from which to abstract. SVG and XHTML are probably good candidates.

> In particular, I'd welcome the Council reinstating 

We can't "reinstate" something that has not yet been published. :)

> the SVG XEP 

Which one?

We have:

1. http://www.xmpp.org/extensions/inbox/sxde.html plus
http://www.xmpp.org/extensions/inbox/whiteboard.html

2. http://www.xmpp.org/extensions/inbox/whiteboard2.html

> as an
> experimental protocol, 

Unlike the IETF, we don't have the concept of an "Experimental" spec.
The closest we come is Informational specs. More here:

http://www.xmpp.org/extensions/xep-0001.html#types

We could always add another XEP type if needed, though.

> and encouraging people to consider the XHTML
> case. I'd suggest attempting the latter by considering adaptations of
> the SVG spec to handle XHTML instead, then consider how to re-unify
> them, but even a wholly distinct effort would go a long way to getting a
> unified XML realtime collaborative editing protocol done.

+1

Peter

-- 
Peter Saint-Andre
https://stpeter.im/

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