- From: Jim Hendler <hendler@cs.umd.edu>
- Date: Sun, 12 Jan 2003 17:44:22 -0500
- To: Christopher Welty <welty@us.ibm.com>, www-webont-wg@w3.org
Chris - at one point it was suggested that we should have a glossary in Guide or ref. I think the "use with consistent meaning" below could be turned into one very easily, and would avoid a lot of comments of the type "what do you mean by XXX, we use it to mean YYY" (a number of which we got in public-comments) - would you be willing to clean this up (just make each of the below a sentence, with pointers) that we could either put in a document or on the web site as the group prefers? -JH At 17:07 -0500 1/12/03, Christopher Welty wrote: >I realize after looking at my own notes on the editor's breakout that I >didn't explain my notation. Here it is in more readable form: > >The editors agreed that we should be more consistent about the terms used >in the webont documents. We identified common confusing and overloaded >terms, and decided on a uniform meaning to be used in our documents. Some >of these decisions were simply arbitrary, some were driven by accepted use >in other W3C groups. > >We also decided not to use the word "axiom" in the overview or the guide, >but that it was OK in the reference document. We didn't discuss the >requirements document. > >Do Not Use: >-------------------- >object >class member >knowledge base >symbol >term >name > > >Use with consistent meaning: >------------------------------------------- >resource: RDF resources >instance: the relation between an individual and a class >individual: an instance of a class >ontology: the import closure of documents (Note that an ontology is >ANYTHING WRITTEN IN OWL) >document: in the web sense - something with a URL (Note that document and >ontology should not be confused. An ontology may span documents) >element: in the XML sense >entity: in the XML sense >attribute: in the XML sense >node: in the RDF sense >component or peice: for parts of a definition e.g. the arguments to >intersection-of in a class definition >URI reference: instead of "name of object" for referring to something >named >Language Construct: things like OWL:Class, OWL:intersection. These are >also URI references. >vocabulary: in the RDF model theory sense (a set of URI refs) >class: in the OWL sense, as a language construct >concept: informal term for the abstractions "in the world" that classes >denote > type: in the RDF sense - the instance relation >class expression: any use of the Class construct to express an axiom >class definition: INFORMAL term for talking about an owl:class tag and >its pieces >property defintion: INFORMAL term for talking about an owl:class tag and >its pieces >set: in the mathematical sense >statement: An open tag, it's close tag, and everything in between. E.g. >"import statement" >restriction: usually a peice of a class expression, a statement that >expresses a constraint, local by default >local restriction >global restriction: reserved only for discussions of property domain and >range >constraint: Informal term for discussing the effect of a restriction > > >-Chris > >Dr. Christopher A. Welty, Knowledge Structures Group >IBM Watson Research Center, 19 Skyline Dr. >Hawthorne, NY 10532 USA >Voice: +1 914.784.7055, IBM T/L: 863.7055 >Fax: +1 914.784.6078, Email: welty@us.ibm.com -- Professor James Hendler hendler@cs.umd.edu Director, Semantic Web and Agent Technologies 301-405-2696 Maryland Information and Network Dynamics Lab. 301-405-6707 (Fax) Univ of Maryland, College Park, MD 20742 240-731-3822 (Cell) http://www.cs.umd.edu/users/hendler
Received on Sunday, 12 January 2003 17:44:32 UTC