Authors: Y. Tang, H. Lutfiyya, V. Tosic
Addresses: Department of Computer Science and Technology, Xi'an Jiaotong University, 28 Xianning Road West, Xi'an, Shaanxi, 710049, China. ' Department of Computer Science, Middlesex College, University of Western Ontario, London, Ontario, N6A 5B7, Canada. ' NICTA and The University of New South Wales, NICTA, Locked Bag 9013, Alexandria NSW 1435, Sydney, Australia; Middlesex College, The University of Western Ontario, London, Ontario, N6A 5B7, Canada
Abstract: Quality of service (QoS) management is becoming an integral part of current web services. Contracts are playing a very important role in MAPE-based (monitor, analyse, plan and execute) web service QoS management. Therefore, we propose a general model, contract-MAPE (C-MAPE) model, and based on this model, review five major projects in this area. The analysis results show that these major research projects are quite much following C-MAPE model, whereas they give different support on different aspects. We also analyse possible ways to achieve integrated QoS management, for web services and their compositions. This paper contributes to the understanding of automatic processing of formal contracts, as well as of the relationship between contracts, QoS management systems, and web service provisioning systems.
Keywords: contracts; service level agreements; SLA; web services; web service management; quality of service; QoS management; management infrastructures; MAPE loop; business process integration; business process management.
International Journal of Business Process Integration and Management, 2009 Vol.4 No.3, pp.209 - 218
Published online: 16 Jan 2010 *Full-text access for editors Access for subscribers Purchase this article Comment on this article