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>
Message-ID: <NCBBJIFAOLHFMAPPOLHCCEAHCLAA.gf@medianet.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
RFC2445.

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

http://www.ietf.org/internet-drafts/draft-many-ical-ski-01.txt

> -----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 GMT

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