Hi David, That was confusing indeed! I have replaced the word ³Entity² in the second sentence with the word ³Agent.²
[All classes (including Agent) and instances thereof in higgins.owl 1.1 are types of Higgins Entities. But when modeling in OWL we don¹t directly use Entity directly. ] --Paul On 4/9/09 3:48 PM, "David Kuehr-McLaren" <[email protected]> wrote: > > I am having trouble understanding the instructions to Context Provider authors > regarding extending the higgins ontology as per the Context Data Model 1.1 > page. (I apologize in advance, if this is a basic OWL question or is > documented elsewhere on the wiki) > > http://wiki.eclipse.org/Context_Data_Model_1.1#Building_on_higgins.owl_1.1 > > In the section "Building on higgins.owl 1.1 " it states > > " Developers must create specialized ontologies based on HOWL that describe > specific concrete domains.For example, if a developer wanted to describe a CRM > database, she would create an OWL ontology that would describe the data > objects in the CRM database. This CRM database is called a Context in Higgins. > If, for example, the database contained records about customers and those > customers had full-names and email addresses, then the developer would define > "Customer" as a sub-class of Entity and "full-name" and "email" as kinds of > Attributes." > > The first sentence implies the developer should be using the "upper" ontology > higgins1.1 owl. But the last sentence tells the developer to reference the > CDM and subclass Entity. Intuitively, I think i would want to subclass Person > from HOWL for a Customer object. But Agent does not seem to subclass Entity. > > When I use OWL modeling tools like SWOOP or Protoge, I can not figure out how > to subclass Agent as an Entity. > > Thanks for any guidance, > > > David > > David Kuehr-McLaren > Tivoli Security > Identity Integration Architecture > 919.224.1960 >
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