W3C home > Mailing lists > Public > www-rdf-interest@w3.org > December 1999

SV: Calendar sharing and synchronization

From: Greg FitzPatrick <gf@medianet.org>
Date: Thu, 2 Dec 1999 16:48:53 +0100
To: "Dan Connolly" <connolly@w3.org>, <www-rdf-interest@w3.org>
This topic might be passé for the moment on this list, but I would like to
draw your attention to this mime type draft which is an extension of

We are currently preparing an XML version, if anyone is interested in
helping out.


> -----Ursprungligt meddelande-----
> Från: www-rdf-interest-request@w3.org
> [mailto:www-rdf-interest-request@w3.org]För Dan Connolly
> Skickat: den 10 november 1999 05:29
> Till: www-rdf-interest@w3.org
> Ämne: Calendar sharing and synchronization
> Have you seen these web-based calendar apps?
> 	http://calendar.yahoo.com/
> 	http://www.dailydrill.com/
> They're cool, but they're closed-world: I can schedule a dailydrill
> meeting and invite somebody to add it to their calendar, but only
> if they're a dailydrill user. Gee thanks; if I want a closed-world
> solution, Notes and Exchange are much more mature.
> And... I can't make links from item descriptions to the rest
> of the web! I can say "I plan to be at XML '99 Dec 5-9" but
> I can't have XML '99 linked to the rest of the details!
> What a waste!
> Plus... I have a bunch of stuff about my schedule on pages in
> http://www.w3.org/ and I don't want to manually copy the data all over
> the
> place. I just want the computer to pore over my digital world
> and show me consolidated views of the information I've already recorded.
> In the IETF WG on calendaring http://www.imc.org/ietf-calendar/ they've
> developed an elaborate protocol and data model for this stuff. But I
> wonder...
> isn't there a simpler way? Can't I just litter my web and email messages
> with RDF statements, and then do a big graph merge?
> Then I should be able to do fairly straightforward style prolog
> queries like:
> 	what events am I expected to attend tomorrow?
> 	do I have any previous engagements for tomorrow at 2pm?
> A trickier question is: how about PalmPilot style syncing, i.e. write
> operations? if the displayed schedule is just a view of prior
> communications,
> then it's hard to say what it means to edit it... but in a way, this
> is a good model of the real world: a meeting isn't rescheduled just
> because you flip some bits on your desktop; it's rescheduled when you
> tell the expected participants of the new schedule.
> I haven't managed to do much hacking, but I'm trying to develop software
> to sync my pilot with web pages... XHTML web pages, at least; I
> don't really see how to do RDF syncing yet. I converted the
> contents of my pilot datebook ala:
> <h2>Fri, 18 Sep 1998</h2>
> <dl><TimedDayEntry day="1998-09-18"><dt><time>07:15</time>
> <duration>00:15</duration>
> run w/Bo</dt>
> </TimedDayEntry>
> <TimedDayEntry day="1998-09-18"><dt><time>09:00</time>
> <duration>01:00</duration>
> arch weekly</dt>
> </TimedDayEntry>
> <TimedDayEntry day="1998-09-18"><dt><time>10:30</time>
> <duration>01:00</duration>
> Danny, Rolf tour</dt>
> <dd><p>per RDF review 17Sep</p>
> <p></dd>
> </TimedDayEntry>
> ...
> </dl>
> It's not RDF, but (1) it displays OK in conventional HTML browsers,
> and (2) it records all the data from the pilot (except the crucial
> record IDs, which weren't included in the tab-separated-values
> dump I got from some .exe program that reads pilot desktop data files
> :-{)
> Anyway... more thoughts on the subject at:
> 	http://www.w3.org/People/Connolly/drafts/web-research#when
> --
> Dan Connolly, W3C
> http://www.w3.org/People/Connolly/
Received on Thursday, 2 December 1999 10:44:00 UTC

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