Web Services Directory

Summary of existing resources, articles and references on the OWL Web Ontology Language

In accord with Tim Berners-Lee's vision of a Semantic Web as "an extension of the current one, in which information is given well-defined meaning, better enabling computers and people to work in cooperation", the OntoWeb Network has been set up to provide support for, disseminate information on, and encourage development of, ontologies as the essential technology for the Semantic Web.

iMorph is a technology provider specializing in the transformation of information for dynamic web implementation.

RDFWeb is an experimental linked information system, where the linked items are machine-understandable documents in the World Wide Web. These documents, written in the XML, RDF and XHTML languages, are harvested by our Web indexing programs, which then merge the resulting information to form one big database. By exploiting various features of the RDF technology alongside related tools such as digital signature, we can use the Web to retrieve structured information that machines can process and act upon. RDFWeb is best understood as an exploration of the question: what would it be like if machines could read what we say in our Web homepages?

Contivo is the only company with a platform independent, model-based semantic server for designing and managing data integration. Contivo automates the design of data transformation between applications through model reuse and collaboration

Home page of the DARPA Agenet Markup Language and related technologies. The DAML language is being developed as an extension to XML and the Resource Description Framework (RDF). The latest release of the language (DAML+OIL) provides a rich set of constructs with which to create ontologies and to markup information so that it is machine readable and understandable.

Protégé-2000 is an integrated ontology and knowledge-base editing environment. It provides an open-source, extensible architecture for the creation of customized knowledge-based tools in Java. Protégé-2000 is available as free software under the open-source Mozilla Public License.

The Portable Information Access (PIA) project aims to develop a domain adaptable information extraction (IE) system for annotating semantic content in texts. IE systems basically aim to extract proto-typical facts from large collections of texts such as the activations between proteins in molecular biology or the merging and acquisitions of companies in business news. In contrast to other Web-based technologies such as information retrieval (IR) which are characterized by strong portability, no such system as yet exists for IE.

SHOE (Simple HTML Ontology Extensions) is an XML-compatible knowledge representation language for the Web. It allows web pages to be described in the context of one or more publicly available ontologies, which provide semantics for reasoning about the contents. This site contains tools for marking up and querying SHOE, sample ontologies, research publications, and a SHOE-based search engine.

RDQL is an implementation of an SQL-like query language for RDF. It treats RDF as data and provides query with triple patterns and constraints over a single RDF model. Part of the HP Labs Semantic Web resources.

An Intelligent Brokering Service for Knowledge-Component Reuse on the World-Wide Web. The objective of IBROW is to develop intelligent brokers that are able to distributively configure reusable components into knowledge systems through the World-Wide Web. The WWW is changing the nature of software development to a distributive plug & play process, which requires a new kind of managing software: intelligent software brokers. IBROW will integrate research on heterogeneous DB, interoperability and Web technology with knowledge-system technology and ontologies.

KTweb brings together the European projects and people working in information access and knowledge technologies - in research, academia and business - and offers information and resources in these domains at a global level. An good starting point for knowledge technologies information.

This multidisciplinary project aims at offering methodological and software support (i.e. models, methods and tools) for knowledge management (i.e., for building, managing and distributing a corporate memory).

The CoMMA project Corporate Memory Management through Agents aims at developing an open, agent based platform for the management of a corporate memory by using the most advanced results on the technical, the content, and the user interaction level.

A semantic search engine that indexes pages marked up with SHOE, an ontology-based, XML-compatible, knowledge representation language for the Web.

FEF supports the conceptual model proposed in Financial Exchange Theory. Financial Exchange Theory provides a basis for the definition of financial entities such as international financial products, financial transactions, financial services and monitoring positions. Financial components, relating to generic functions within international financial markets, are put together following a simple set of rules to create all the above financial entities. FEF is defined as classes, relationships and constraints; actual international financial market entities are recorded as instances. The structure and nature of all financial entities can thus be seen and compared. FEF was created using Stanford University's ontology defining tool, "Protege 2000". FEF is an initiative by International Financial Information Publishing Ltd (Ifip) and has been created based upon the proprietary ‘I-Format’ data model marketed by Ifip for enterprise-wide publication of financial transaction processing data (www.financial-format.com). FEF only contains those components and attributes required to describe Financial Exchange Theory. Initially only a limited number of financial entities will be defined within FEF. FEF is available free of charge.

The Karlsruhe Ontology (KAON) tool suite builds on RDF and provides specialized tools including: SDK, engineering, discovery, management and presentation of ontologies and metadata. Site includes middleware downloads, whitepapers, specifications and demonstrations. A practical web resource for Semantic web development.

Semantic World is a web community dedicated to the use of semantic information management methods in industry. Semantic World contains relevant news and analysis, a comprehensive resource center, and interactive forums for practitioners of semantic methodologies to share experiences, problems, and initiatives. Semantic World aims to support and influence developing standards for ontology modeling, semantic mapping, and the use of semantic information management methods in IT.

Through our website, whitepapers, and consulting services, Semaview aims to be the world leader of semantic technologies.

The objective of the SEWASIE project is to assist SMEs (so-call Integrated Economies) in enhancing their inter- and intra- organisational information management through semantic enrichment, query techniques and better information presentation. Ultimately, the objectives are to make it easier for SMEs to find and be found by other economic agents within the economic fabric of local and international economies.