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Subject: Semantic Web Collaborations
- From: Rex Brooks <rexb@starbourne.com>
- To: wsrp@lists.oasis-open.org, bniemann@cox.net
- Date: Fri, 6 Feb 2004 09:08:33 -0800
Title: Semantic Web Collaborations
Note: errors in original
addresses require this separate posting.
Dear
Colleagues:
I was recently asked to
write a brief description of a rationale to begin establishing regular
liaison connections between entities or bodies working on standards or
pilot programs by which the emerging framework of the Semantic Web as
envisioned in the W3C can be advanced. In other words, 'It's time to
start making the semantic web work in practical, pragmatic terms with
concrete examples by connecting previously unconnected
resources."
I am sending this message out to the specific resources, bodies and
entities that I personally want to connect, so please understand that
this message is request for help to make this happen.
If you want to skip the rest of the preamble and get to the nuts,
bolts, who, what and how of this message, you can skip to the
horizontal rule.
First, let me narrow this request by saying that it is aimed at the
leadership of the lists to which this message is being sent but that
is not meant to preclude anyone who reads this from participating,
especially those whose suggestion prompted this message. Any of us can
act as informal liaisons or contribute in any number of ways, but I do
want to move toward some more formal relationships to enable a regular
exchange of information at the least, and, at best, active
participation in new and existing projects and pilot programs as
well.
That said, there are
several facts I want to note. This effort to describe the
interconnections that are now ready to be made in liaisons and
collaborations that will benefit and advance the work of all parties
revolves first around my own participation in the OASIS Emergency
Management Technical Committee, then the Web Services for Remote
Portlets, WSRP, and HumanMarkup TCs, and then my potential
participation in the E-Gov TC.
As co-chair of the HumanMarkup TC, I can say that we identified our
own requirement for a liaison with the E-Gov TC from its inception,
but have not had success in finding someone capable of following
through with such a commitment, and so I have decided to do this
myself, and curtail other commitments to enable this, perhaps by
serving as liaison to both the Emergency Management and HumanMarkup
TCs.
I also envision working
with both the ebXML Registry TC and the Content Assembly Mechanism TC.
The ebXML Registry TC has a Semantic Content Management Subcommittee
which may be of specific interest and use in connecting with E-Gov TC,
which has identified a requirement to address the need for a Semantic
Content Management Mechanism of some sort.
A note on my personal history may help put this into a more complete
context. I co-founded the Content Development Working Group of the
Web3D Consortium in 1998, when it was named The VRML Consortium. I
joined HumanMarkup work as it was forming in order to develop a high
level authoring language capable of being used to provide standard
behaviors for real-time representation of 3D humans on the web, and
this remains my long term goal. I recently became involved with
Emergency Management because it is a natural extension of my work to
provide geospatially accurate 3D depictions of emergency
environments in real time. These are, of course, longer term goals as
opposed to what we can provide more immediately in the next few years.
So, this is a consistent thread in my own work since I first began
working on standards for my own work.
As an example of the kind of work I envision, I offer the 60-slide
presentation accompanied by a 27-page paper, I made on behalf of the
OASIS HumanMarkup TC, and Humanmarkup.org, Inc., the 501(c)(3)
Non-Profit Corporation to educate and foster development of the Human
Markup Language, of which I am the volunteer Executive Director. The
ultimate product of the collaboration described was a (WSRP 1.0/JSR
168 conformant) Web Services-based Public Healthcare Preparedness
Portal using the Common Alerting Protocol, CAP, developed by the
Emergency Management TC, shown in slide 59:
Slides:
http://ua-exp.gov/QuickPlace/ua-exp/Main.nsf/h_12CDF5C6107594FD85256DEF0073C0BA/B6211857396EBE3485256DF6007B83A8/?OpenDocument
Paper:
http://ua-exp.gov/QuickPlace/ua-exp/Main.nsf/h_12CDF5C6107594FD85256DEF0073C0BA/E2D6A4734FFFA14585256DF80053D03F/?OpenDocument
Realizing the Semantic Web:
The W3C released the most
current RDF and OWL specifications December 15, 2003. OWL is the Web
Ontology Language and RDF is the Resource Descritpion Framework, and
together they comprise the fundamental specifications which
specifically enable inference engines and, therefore, allow the
Semantic Web to begin developing in earnest.
OWL Overview:
http://www.w3.org/TR/2003/PR-owl-features-20031215/
OWL Guide:
http://www.w3.org/TR/owl-guide/
OWL Reference:
http://www.w3.org/TR/owl-ref/
OWL Semantics and Abstract Syntax:
http://www.w3.org/TR/owl-semantics/
OWL Web Ontology Language Test Cases:
http://www.w3.org/TR/owl-test/
OWL Use Cases and Requirements:
http://www.w3.org/TR/webont-req/
RDF/XML Syntax Specification (Revised)
http://www.w3.org/TR/rdf-syntax-grammar/
RDF Vocabulary Description Language 1.0:
RDF Schema
http://www.w3.org/TR/rdf-schema/
RDF Primer:
http://www.w3.org/TR/rdf-primer/
Resource Description Framework (RDF):
Concepts and Abstract Syntax
http://www.w3.org/TR/rdf-concepts/
RDF Semantics
http://www.w3.org/TR/rdf-mt/
RDF Test Cases
http://www.w3.org/TR/rdf-testcases/
The Stanford Medical
Informatics Groups recently released Protege 2.0, a working Knowledge
Base and Ontology Building open source application project, which has
both an OWL Plugin and an RDF Plugin.
http://protege.stanford.edu
This gives us a set of languages and a toolkit to use to build
applications realizing practical, working applications of the Semantic
Web.
Disclaimer: all of these
components are recent, though they have been in development for
several years, but should not be expected to display error-free or
mature reliability.
My personal short term goal at this point in time is to develop an
extension of the Portal developed in the presentation given to the EA
Collaboration Expedition Workshop #30 cited above, perhaps including,
or being included within an extended format with the presentation
given by ebXML Registry Services to XML 2003 in December in
Philadelphia, PA.
http://ebxmlrr.sourceforge.net/presentations/oasis-demo-xml2003.sxi
http://ebxmlrr.sourceforge.net/presentations/oasis-demo-xml2003.ppt
The very extensive collaborations represented in the presentations
given at the EA Workshop and XML 2003 illustrate the breadth of
standards and organizations which can interoperate using the
principles on which the Semantic Web is based. Moving this further can
be facilitated by adding a few more components such as the the Web
Services Business Process Execution Language, WSBPEL, and the Web
Services Choreography Language which is under development by W3C.
To be specific about the entities which I would like to see involved
in active liaisons, I offer this list:
OASIS Content Assembly Mechanism TC
OASIS ebXML Registry TC
ebXML Registry Semantic
Content Management SC
OASIS e-Government TC
OASIS Emergency Management TC
EM GIS SC
EM Infrastructure
Framework SC
EM Messages and Notification SC
OASIS HumanMarkup
OASIS Web Services Business Process Execution Language TC
OASIS Web Services for Remote Portlets TC
My wish list for extra-OASIS participants:
W3C Web Services Choreography Working Group
Stanford Medical Informatics--Protege
Web3D Consortium Geovrml Working Group
This does not mean that I do not think other groups ought to be
included, but I am somewhat more focused on the emergency management
application area in order to deliver immediately understandable, and
global/pan-human benefits in any demonstration projects that might be
developed.
--
Rex Brooks
GeoAddress: 1361-A Addison, Berkeley, CA, 94702 USA, Earth
W3Address: http://www.starbourne.com
Email: rexb@starbourne.com
Tel: 510-849-2309
Fax: By Request
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