Dynamic Selection Of Redundant Web Services: Managing Redundancy Through Virtual Web Services - Softcover

Slavova, Svetlana

Softcover

ISBN 10: 3639014839 ISBN 13: 9783639014839

Publisher: VDM Verlag Dr. Müller, 2009

Synopsis

In the domain of Web Services it is not uncommon to find redundant services that provide functionalities to the clients. Services with the same functionality can be clustered into a group of redundant services. Respectively, if a service offers different functionalities, it belongs to more than one group. Having various Web Services that are able to handle the client¿s request suggests the necessity of a mechanism that selects the most appropriate Web Service at a given moment of time. This book presents an approach, Virtual Web Services Layer, for dynamic service selection based on virtualization on the server side. It helps managing redundant services in a transparent manner as well as allows adding services to the system at run-time. In addition, the layer assures a level of security since the clients do not have direct access to the Web Services. Several selection techniques are applied to increase the performance of the system in terms of load-balancing, dependability, or execution time. The results show which techniques are appropriate when various QoS criteria of the services are known and how the correctness of this information influences on the decision-making process.

About this title

About the Author

Eng., B. Sc., M. Sc.: Computer Science at University of Saskatchewan, Canada, M. Sc., 2005-2007. Computer Science at Technical University of Sofia, Bulgaria, B. Sc., 2000-2005. Senior Software Developer at Register.BG Ltd., Varna, Bulgaria, 2007-present. Teaching Assistant at University of Saskatchewan, 2005-2007. http://svetlana.s.bg/

Edition details

• Publisher: VDM Verlag Dr. Müller
• Publication date: 2009
• Language: English
• ISBN 10: 3639014839
• ISBN 13: 9783639014839
• Binding: Paperback
• Number of pages: 152