COBRA-ONT v0.4 Tutorial 2
--------------------------
Date: 09.23.2003
Author: Harry Chen (harry.chen@umbc.edu)

The following examples show how COBRA-ONT can be used to represent
knowledge about a meeting schedule, a talk event, and the speaker of a
talk. 

The namespace shorthands are defined as the following:

calc  <=> http://daml.umbc.edu/ontologies/cobra/0.4/calendarclock#
tme   <=> http://daml.umbc.edu/ontologies/cobra/0.4/time-basic#
mto   <=> http://daml.umbc.edu/ontologies/cobra/0.4/meeting#
talk  <=> http://daml.umbc.edu/ontologies/ittalks/2.1/talk#
spkr  <=> http://daml.umbc.edu/ontologies/ittalks/2.1/speaker#

---
Example 1. Define a meeting that starts at 14:30:00 and ends at
15:30:00 on 09/30/2003. The location of the meeting is described by
the resource "http://umbc.edu/ITE/201A". The description of time
interval is somewhat different from the constructs proposed by the
DAML-Time and Time-Entry ontology. 

<mto:Meeting rdf:about="http://ittalks.org/talk/09222003b">
    <tme:hasIntervalDescription>
	<tme:IntervalDescription>
	    <tme:firstInstantDescription 
	        rdf:resource="http://ittalks.org/talk/09222003b/startTime"/>
	    <tme:secondInstantDescription 
	        rdf:resource="http://ittalks.org/talk/09222003b/endTime"/>
        </tme:IntervalDescription>
    <tme:hasIntervalDescription>

    <mto:location rdf:resource="http://umbc.edu/ITE/201A"/>

</mto:Meeting>

<tme:InstantDescription 
    rdf:about="http://ittalks.org/talk/09222003b/startTime">

    <tme:definedByCalendar>
        <calc:CalendarDescription>
            <calc:year>2003</calc:year>
            <calc:month>9</calc:month>
            <calc:dateOfMonth>30</calc:dateOfMonth>
        </calc:CalendarDescription>
    </tme:definedByCalendar>

    <tme:definedByClock>
       <calc:ClockDescription>
           <calc:hourOfDay>14</calc:hourOfDay>
           <calc:minute>30</calc:minute>
           <calc:second>00</calc:second>
       </calc:ClockDescription>
    </tme:definedByClock>
</tme:InstantDescription>

<tme:InstantDescription 
    rdf:about="http://ittalks.org/talk/09222003b/endTime">

    <tme:definedByCalendar>
        <calc:CalendarDescription>
            <calc:year>2003</calc:year>
            <calc:month>9</calc:month>
            <calc:dateOfMonth>30</calc:dateOfMonth>
        </calc:CalendarDescription>
    </tme:definedByCalendar>

    <tme:definedByClock>
       <calc:ClockDescription>
           <calc:hourOfDay>15</calc:hourOfDay>
           <calc:minute>30</calc:minute>
           <calc:second>00</calc:second>
       </calc:ClockDescription>
    </tme:definedByClock>
</tme:InstantDescription>

---
Example 2. A talk is a special type of meeting. We can further
describe the above schedule (in Example 1) is for hosting a talk
event. We use ITTalks's Talk ontology to describe the properties of a
talk. (cont. with the previous example)

<mto:Talk rdf:about="http://ittalks.org/talk/09222003b">
   <talk:host rdf:resource="http://umbc.edu/~fperic1"/>
   <talk:speaker rdf:resource="http://umbc.edu/~hchen4"/>
   <talk:topic>Context-ware computing</talk:topic>
   <talk:abstract>
       In this talk, I will overview the history of context-aware
       systems and its role in pervasive computing.
   </talk:abstract>
</mto:Talk>

--
Example 3. To describe a speaker, we use ITTalks's Speaker ontology. 
(cont. with the previous example)

<spkr:Speaker rdf:about="http://umbc.edu/~hchen4">
    <spkr:bioSketch>
      Harry Chen is a Ph.D. student and a Graduate Research Assistant
      in the Department of Computer Science and Electrical Engineering
      at the University of Maryland Baltimore County (UMBC). He received
      B.S. and M.S. degree in Computer Science from UMBC in 1998 and
      2000, respectively. Chen is a member of the UMBC Laboratory for
      Advanced Information Technology and the UMBC eBiquity group where
      he is working on projects involving pervasive computing,
      intelligent agents, and the semantic web. 
    </spkr:bioSketch>

    <spkr:expertise>
      Pervasive Computing, Semantic Web, Intelligent Agents
    </spkr:expertise>

    <spkr:speakerOf rdf:resource="http://ittalks.org/talk/09222003b"/>    

</spkr:Speaker>