Re: [ba-ohs-talk] Fwd: XML.com: Introduction to DAML
Can any of the geniuses out there tell me if I've understood how this works
The most general (object) class in DAML.
This is equal to the union of any class and its complement.
<rdfs:comment>the class with no things in it.</rdfs:comment>
It's from the daml+oil.daml spec.
Is this just forcing the idea that the Thing Class includes the Nothing
Class but not vice versa? Not that that makes any real sense, it just stops
the computer frying it's switches(?). (04)
Also, why isn't there more XLink in DAML+OIL (and RDFS for that matter )?
It strikes me that XLink complex links would be ideal where you are
asserting multiple property equivalences. Or one might go further... (05)
----- Original Message -----
From: "Jack Park" <email@example.com>
Sent: Thursday, January 31, 2002 4:43 AM
Subject: [ba-ohs-talk] Fwd: XML.com: Introduction to DAML (07)
> > XML.COM Xtra!
> > ---------------------------------
> > The Email for XML.COM Subscribers
> >Dear Reader,
> >XML.com's main feature this week focuses on DAML, a modeling
> >language built on RDF. DAML allows the sort of sophisticated
> >data modeling that is required for the vision of the
> >machine-processable Semantic Web to be realized. Follow the
> >first part of Uche Ogbuji's Introduction to DAML at
> >If Web Services are more your cup of tea than the Semantic Web,
> >then you will be interested by an article this week by James Snell,
> >one of the authors of O'Reilly's "Programming Web Services with SOAP"
> >book. In "Web Services Interoperability" James uses Java, Perl and
> >.NET to highlight SOAP interoperability issues. Read more at
> >John Simpson's back this week with his Q&A column, solving more of
> >readers' difficulties with XML, including this month the problem
> >of undesired whitespace with XSLT. More at
> >Leigh Dodds' XML-Deviant column catalogs as usual the debate of
> >the XML developer community. This week, Leigh focuses on several
> >threads of conversation all connected with the problem of
> >associating processing with an XML document. Read "Document
> >Associations" at
> >This week, the W3C announced a new thread of activity focusing on
> >web services. In my <taglines/> column I examine the new initiative,
> >which seems to be a welcome development. That, plus the usual
> >selection of pot-shots at the world of XML can be found at
> >Edd Dumbill
> >Managing Editor, XML.com
> >FREE SSL Guide from Thawte
> >Are you planning your Web Server Security? Click here to get
> >a FREE Thawte SSL guide and find the answers to all your SSL
> >security issues. http://gothawte.com/rd148.html
> >*** Featured Articles ***
> >Introduction to DAML: Part I
> >The first of a three-part series examining the DARPA Agent Markup
> >Language, an XML/RDF application intended to provide tools for
> >building the Semantic Web.
> >Web Services Interoperability
> >Interoperability is about blurring the lines between development
> >environments, and James Snell, coauthor of Programming Web Services
> >with SOAP, illustrates what that means with a simple demonstration
> >showing that at least basic tools are available to do that.
> >Document Associations
> >The Deviant column examines the relation of namespaces and document
> >types, as well as multi-typed documents, in the context of XML
> >processing models.
> >Welcome Web Services Activity
> >Commentary on the W3C's launch of a Web Services Activity, along
> >with the usual sideways look at the world of XML.
> >XML & WEB SERVICES 2002 CONFERENCE & EXHIBITION
> >Strategies for Successful E-Business Development
> >11-13 March 2002, Queen Elizabeth II Conference Centre, London
> >XML & Web Services 2002 brings together the key players in the software
> >development market to deliver an unmatched programme of educational
> >sessions, and keynote presentations. http://www.xmlwebservices.co.uk
> >*** XML News Headlines from The XML Cover Pages by Robin Cover ***
> >W3C Organizes a Web Services Activity.
> >Sun Releases Java Web Services Developer Pack EA1.
> >Updated SPACE XML Schema for the Advertising Print/Publisher
> >Supply Chain.
> >Seminar on Rule Markup Techniques for the Semantic Web.
> >W3C Patent Policy Supports Royalty-Free (RF) Working Groups.