Krys J. Kochut

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Workflow management systems (WfMSs) have been used to support various types of business processes for more than a decade now. In workflows or Web processes for e-commerce and Web service applications, suppliers and customers define a binding agreement or contract between the two parties, specifying Quality of Service (QoS) items such as products or services(More)
Public and private organizations have access to vast amount of internal, deep Web and open Web information. Transforming this heterogeneous and distributed information into actionable and insightful information is the key to the emerging new class of business intelligence and national security applications. Although role of semantics in search and(More)
Discovery of semantic associations in Semantic Web ontologies is an important task in various analytical activities. Several query languages and storage systems have been designed and implemented for storage and retrieval of information in RDF ontologies. However, they are inadequate for semantic association discovery. In this paper we present the design(More)
METEOR2 workflow management systems consist of both (1) design/build-time and (2) run-time/enactment components for implementing workflow applications. An enactment system provides the command, communication and control for the individual tasks in the workflow. Tasks are the run-time instances of intra- or inter-enterprise applications. We are developing(More)
Second generation workflow management systems need to deal with heterogeneity of platforms within and across cooperating enterprises along with legacy applications and data. At the same time, there is increasing demand for advanced features for supporting missioncritical processes, including adaptability through dynamic changes and scalability. The workflow(More)
In this paper, defeasible workflow is proposed as a framework to support exception handling for workflow management. By using the “justified” ECA rules to capture more contexts in workflow modeling, defeasible workflow uses context dependent reasoning to enhance the exception handling capability of workflow management systems. In particular, this limits(More)
The rapidly evolving managed healthcare industry requires efficient coordination of human and automated tasks as well as information-flow across multiple enterprises. One of the most critical applications in managed care is state-wide immunization tracking, which if supported by appropriate workflow technology can achieve substantial near term impact. In(More)
B y associating meaning with content, the Semantic Web will facilitate search, interoperability, and the composition of complex applications.1 A recent Scientific American article described the Semantic Web as “an extension of the current Web in which information is given well-defined meaning, better enabling computers and people to work in cooperation.”2(More)