The Semantic Web should enable greater access not only to content but also to services on the Web. Users and software agents should be able to discover, invoke, compose, and monitor Web resources offering particular services and having particular properties. As part of the DARPA Agent Markup Language program, we have begun to develop an ontology of services, called DAML-S, that will make these functionalities possible. In this paper we describe the overall structure of the ontology, the service profile for advertising services, and the process model for the detailed description of the operation of services. We also compare DAML-S with several industry efforts to define standards for characterizing services on the Web.

/pdf/daml-s-semantic-markup-for-web-services-2bz2kpfwet.pdf

DAML-S: semantic markup for web services

The development of the Semantic Web, with machine-readable content, has the potential to revolutionize the World Wide Web and its uses. A Semantic Web Primer provides an introduction and guide to this continuously evolving field, describing its key ideas, languages, and technologies. Suitable for use as a textbook or for independent study by professionals, it concentrates on undergraduate-level fundamental concepts and techniques that will enable readers to proceed with building applications on their own and includes exercises, project descriptions, and annotated references to relevant online materials.The third edition of this widely used text has been thoroughly updated, with significant new material that reflects a rapidly developing field. Treatment of the different languages (OWL2, rules) expands the coverage of RDF and OWL, defining the data model independently of XML and including coverage of N3/Turtle and RDFa. A chapter is devoted to OWL2, the new W3C standard. This edition also features additional coverage of the query language SPARQL, the rule language RIF and the possibility of interaction between rules and ontology languages and applications. The chapter on Semantic Web applications reflects the rapid developments of the past few years. A new chapter offers ideas for term projects. Additional material, including updates on the technological trends and research directions, can be found at http://www.semanticwebprimer.org.

/pdf/a-semantic-web-primer-121rmyoa9a.pdf

A semantic Web primer

Advances in Information Technology have created opportunities for business enterprises to redesign their information and process management systems. The redesigned systems will likely employ some form of workflow management system. Workflow management systems exactly enact business processes described in a process description language. Unfortunately, such strict adherence to the prescribed workflow makes it impossible for the system to adapt to unforeseen circumstances. We firmly believe that the historic trajectory of software development paradigms and IT advancements will establish multiagent systems as the workflow enactment mechanism of the future. In this paper we provide a critical survey of workflow, workflow description languages, web services and agent technologies. We propose that workflow description languages and their associated design tools can be used to specify a multiagent system. Specifically, we advance the idea that the Business Process Execution Language for Web Services (BPEL4WS) can be used as a specification language for expressing the initial social order of the multiagent system, which can then intelligently adapt to changing environmental conditions.

/pdf/towards-adaptive-workflow-enactment-using-multiagent-systems-5fkex0j7lh.pdf

Towards Adaptive Workflow Enactment Using Multiagent Systems

A method comprises providing an interface permitting a first user to control activation of a mobile information channel through which the first user can share access to content with a plurality of additional users, activating the mobile information channel responsive to input received from the first user via the interface, inserting content provided by the first user into the mobile information channel, receiving additional content relating to the mobile information channel from one or more of said additional users via one or more respective mobile devices associated with at least one wireless network, inserting at least a portion of the additional content into the mobile information channel, and integrating into the mobile information channel information associated with at least one wireless networking functionality of said at least one wireless network.

Method, apparatus and system for management of information content for enhanced accessibility over wireless communication networks

https://oasis-open.org/committees/download.php/10068/_infsys04.pdf

Artemis: Deploying semantically enriched Web services in the healthcare domain

The Web is evolving from a repository for text and images to a provider of services - both information-providing services, and services that have some effect on the world. Today's Web was designed primarily for human use. To enable reliable, large-scale automated interoperation of services by computer programs or agents, the properties, capabilities, interfaces and effects of Web services must be understandable to computers. In this paper we propose a vision and a partial realization of precisely this. We propose markup of Web services in the DAML family of semantic Web markup languages. Our markup of Web services enables a wide variety of agent technologies for automated Web service discovery, execution, composition and interoperation. We present one logic-based agent technology for service composition, predicated on the use of reusable, task-specific, high-level generic procedures and user-specific customizing constraints.

/pdf/mobilizing-the-semantic-web-with-daml-enabled-web-services-4ek6m66ngd.pdf

Sheila Mcllraith

Papers

Mobilizing the semantic web with DAML-enabled web services

Solving Satisfiability using Decomposition and the Most Constrained Subproblem (Preliminary Report)

Theorem Proving with Structured Theories (Preliminary Report)