Thursday, February 17, 2005

ECS EPrints Service - On the emergent Semantic Web and overlooked issues 

ECS EPrints Service - On the emergent Semantic Web and overlooked issues: "Abstract
The emergent Semantic Web, despite being in its infancy, has already received a lot of attention from academia and industry. This resulted in an abundance of prototype systems and discussion most of which are centred around the underlying infrastructure. However, when we critically review the work done to date we realise that there is little discussion with respect to the vision of the Semantic Web. In particular, there is an observed dearth of discussion on how to deliver knowledge sharing in an environment such as the Semantic Web in effective and efficient manners. There are a lot of overlooked issues, associated with agents and trust to hidden assumptions made with respect to knowledge representation and robust reasoning in a distributed environment. These issues could potentially hinder further development if not considered at the early stages of designing Semantic Web systems. In this perspectives paper, we aim to help engineers and practitioners of the Semantic Web by raising awareness of these issues."

SOAP Service Description Language (SSDL) 

<savas:weblog/>: "We are finally ready to request the community's feedback on our latest work, the SOAP Service Description Language, or SSDL. Jim and I collaborated with a small team of people to produce a description language for Web Services that we think is exciting since it encourages us to reason in terms of messages, rather than 'operations', 'interfaces', and 'inheritance', when writing contracts.
The SSDL core specification defines the format of a contract document and mechanisms for Protocol Frameworks to reference the declared messages. Protocol frameworks are used to correlate the messages into simple MEPs or complex protocols. We have made available four such protocol frameworks: MEP, CSP, Rules, and SC). There are also an SSDL high-level overview document and a whitepaper available."

World Wide Webber - Jim Webber's Blog 

World Wide Webber - Jim Webber's Blog: "Announcing SSDL - The SOAP Service Description Language
After some months of relatively head-down, nose-to-the-grindstone kind of work, the fruits of our collective labours are ready for public consumption. The SSDL suite of specifications are ready for consumption by a largely unsuspecting public. Today we are officially announcing the SOAP Service Description Language or SSDL.
SSDL is a SOAP-centric contract language for Web Services. SSDL takes a different approach to WSDL by assuming that SOAP and WS-Addressing will underpin Web Services development and integration and is optimised and simplified for those cases. The major benefit of SSDL is not that it is easy to read and write (or at least as easy as XML ever is), but that it is truly focussed on supporting SOAP messaging. The fundamental abstractions in SSDL are messages and endpoints, which are then used to describe anything from simple request-response MEPs through to multi-message conversations and beyond."

Jon Udell: Google Maps is a web of linked XML documents 

Jon Udell: Google Maps is a web of linked XML documents
"Lots of people have been noticing cool things about Google Maps: large and readable maps, image dragging, dynamic updating, integration with local search, clean URLs for bookmarking, local XSLT processing, transparent PNGs. Then, today, somebody1 this article pointed out something that just knocked my socks off. You can append "output=xml" to any Google Maps URL and receive raw XML. "

ZapThink :: Research - Data Integration Can be a Hoot with OWL 

ZapThink :: Research - Data Integration Can be a Hoot with OWL
"The movement to standards-based computing that XML and Web Services herald is eerily analogous to the work done in the first half of the twentieth century to establish international long distance telephone standards. Finally, you could dial direct to China! The problem was, well, if you didn’t speak Chinese, you still couldn’t have a conversation. The very same situation is now plaguing the area of IT integration today. One of the great advantages of XML, Web Services, and Service-Oriented Architecture is the increased emphasis on the loose coupling of systems, the adoption of interoperable data formats, and the general lowering of the barrier for accessing information in all its disparate types and locations. However, as we discussed earlier in our Loosely Coupling the Meaning of Data ZapFlash, what good is accessing all these data sources when the applications can’t understand or interpret the information they can access?"

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