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2007

Evaluating Quality of Web Services: A Risk-Driven Approach

10 years 4 months ago
Evaluating Quality of Web Services: A Risk-Driven Approach
Abstract. Composing existing web services to obtain new functionalities is important for e-business applications. Deficiencies of aggregated web services can be compensated involving a redundant number of them for critical tasks. Key steps lie in Quality of Service (QoS) evaluation and selection of web services with appropriate quality characteristics in order to avoid frequent and severe faults of a composite web service. This paper, first, surveys the existing approaches for QoS-driven web service selection. Then, it proposes a novel approach for evaluating quality of redundant service compositions through analysis of risk related to the use of external web services. Finally, we describe an improved selection algorithm that takes into account success rate, response time and execution cost of involved web services. Keywords. Web services, Quality of Service, Selection, Composition, Risk Analysis
Natallia Kokash, Vincenzo D'Andrea
Added 29 Oct 2010
Updated 29 Oct 2010
Type Conference
Year 2007
Where BIS
Authors Natallia Kokash, Vincenzo D'Andrea
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