Re: opening hours RDF cal use case

On Wed, 12 Mar 2003, Dan Brickley wrote:

>
> * Dan Brickley <danbri@w3.org> [2003-03-12 12:28-0500]
> >
> > (I was going to talk about this in the IRC chat but I figured an
> > email might be a bit more coherent)
> >
> > RDF calendar for small business opening hours Use Case
> > ======================================================
> >
> > I think Greg Fitzpatrick has done a lot of thinking on this topic. I don't
> > have a handy pointer to prior writeups though.
> >
> > I understand the RDF calendar vocab at http://www.w3.org/2002/12/cal/
> > now has a representation of recurring events. Here's a use case that
> > emphasises RDF's strong points: data mixing.
> >
> > I would like to use RDF calendar 'recurring events' to represent opening
> > hours of shops and other services. In particular I'm interested in using the
> > Semantic Web to support local small businesses, by mixing descriptions of
> > their opening hours with other useful information: homepage of shop,
> > opening hours, contact info, photograph of premises, lat/lang/alt location
> > information, some indication of product lines and individual items for sale.
> >
> > I think I've a handle on how to do most everything except the calendar stuff.
> >
> > Here's an example, any help with expressing their opening hours in RDF
> > would be greatly appreciated!
> >
> > http://www.tuftslife.com/dining/menuview.php?ID=00029&pg=4
> > (from a restaurant info aggregator)
> >
> > This lists the menus and other info for local restaurants here in
> > Somerville, MA USA.  The menus are currently images of paper menus, so
> > there is scope for progress there. See also http://chefmoz.org/rdf.html
> > for more RDF/food work.
> >
> > The bit I'm currently interested in is this:
> >
> > It says, 'Currently [OPEN]', based on info about opening hours. Their
> > summary for the 'Urban Gourmet' place around the corner from here:
> >
> > 	[[
> > 	Monday      Closed
> > 	Tuesday      4:00pm - 11:00pm
> > 	Wednesday      11:30am - 11:00pm
> > 	Thursday      11:30am - 11:00pm
> > 	Friday      11:30am - 11:00pm
> > 	Saturday      11:30am - 11:00pm
> > 	Sunday      11:30am - 11:00pm
> > 	]]
> >
> > So longwinded question unpacked: how do I express this in RDF? Can we
> > use recurrence rules expressed over ical in RDF as the basis? Is extra
> > vocab needed?
> >
> > thanks for any suggestions,
>
> Martijn van Beers ('LotR' in irc logs) created this .ics representation:
>
>  From: "LotR" at 212.83.72.215
> Summary: shop hours
>
> BEGIN:VCALENDAR
> BEGIN:VEVENT
> DTSTART:20030101T160000
> DTEND:20030101T230000
> RRULE:FREQ=WEEKLY;BYDAY=TU
> END:VEVENT
> BEGIN:VEVENT
> DTSTART:20030101T113000
> DTEND:20030101T230000
> RRULE:FREQ=WEEKLY;BYDAY=WE,TH,FR,SA,SU
> END:VEVENT
> END:VCALENDAR
>
>
> (see See http://ilrt.org/discovery/chatlogs/rdfig/2003-03-12#T17-43-54 IRC logs)
>
> Next job is to RDFize this.
> I think the RDF cal view should be simple, and the tricky thing
> will be doing the modeling to link it to more social notions like 'shop'
> and 'open' vs 'closed'...
>
> Dan
>
>
>
This is what my tool generates in RDF, although it doesn't seem to
validate using http://www.w3.org/rdf/validator:


<rdf:RDF
  xmlns:rdf='http://www.w3.org/1999/02/22-rdf-syntax-ns#'
  xmlns='http://www.w3.org/2002/12/cal/ical#'
  xmlns:i='http://www.w3.org/2002/12/cal/ical#'
  xmlns:x='ttp://www.w3.org/2002/12/cal/prod_apple#'
>  <Vcalendar>
    <component>
    <Vevent>
      <dtstart rdf:parseType='Resource'>
        <dateTime>2003-01-01T16:00:00</dateTime>
      </dtstart>
      <dtend rdf:parseType='Resource'>
        <dateTime>2003-01-01T23:00:00</dateTime>
      </dtend>
      <rrule rdf:parseType='Resource'>
<byday>TU</byday><freq>WEEKLY</freq>      </rrule>
    </Vevent>
    </component>
    <component>
    <Vevent>
      <dtstart rdf:parseType='Resource'>
        <dateTime>2003-01-01T11:30:00</dateTime>
      </dtstart>
      <dtend rdf:parseType='Resource'>
        <dateTime>2003-01-01T23:00:00</dateTime>
      </dtend>
      <rrule rdf:parseType='Resource'>
<byday>WE,TH,FR,SA,SU</byday><freq>WEEKLY</freq>      </rrule>
    </Vevent>
    </component>
  </Vcalendar>
</rdf:RDF>

Libby

Received on Wednesday, 12 March 2003 13:35:45 UTC