Quality of service for workflows and web service processes |
| |
Authors: | Jorge Cardoso Amit Sheth John Miller Jonathan Arnold Krys Kochut |
| |
Affiliation: | a Departamento de Matemática e Engenharias, Universidade da Madeira, 9000-390, Funchal, Portugal;b LSDIS Lab, Department of Computer Science, University of Georgia, Athens, GA 30602, USA;c Department of Genetics, Fungal Genome Resource laboratory, University of Georgia, Athens, GA 30602, USA |
| |
Abstract: | 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 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 or Web processes, the underlying workflow engine 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. We also present the implementation of our QoS model for the METEOR workflow system. We describe the components that have been changed or added, and discuss how they interact to enable the management of QoS. |
| |
Keywords: | Web service quality of service Web process quality of service Workflow quality of service Predictive quality of service Business process management Workflow management systems |
本文献已被 ScienceDirect 等数据库收录! |
|