Modeling Quality of Service for Workflows and Web Service Processes

TitleModeling Quality of Service for Workflows and Web Service Processes
Publication TypeMiscellaneous
Year of Publication2002
AuthorsJohn Miller, Jorge Cardoso, Jonathan Arnold, Amit Sheth

Workflow management systems (WfMSs) have been used to support various types of business processes for more than a decade now. In workflows for e-commerce and Web-services 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 to be delivered, deadlines, quality of products, and cost of services. The management of QoS metrics directly impacts the success of organizations participating in e-commerce. Therefore, when services or products are created or managed using workflows, the underlying workflow system must accept the specifications and be able to estimate, monitor, and control the QoS rendered to customers. In this paper, we present a predictive QoS model that makes it possible to compute the quality of service for workflows automatically based on atomic task QoS attributes. To this end, we present a model that specifies QoS and describe an algorithm and a simulation system in order to compute, analyze and monitor workflow QoS metrics.

Full Text

Jorge Cardoso,John Miller,Amit Sheth, and J. Arnold, 'Modeling Quality of Service for Workflows and Web Service Processes,' techincal report, UGA-CS-TR-02-002, LSDIS Lab, Computer Science Department, University of Georgia, May 2002.
year: 2002
volume: UGA-CS-TR-02-002