Probability distribution-based QoS analysis for web service composition
WISS'10 Proceedings of the 2010 international conference on Web information systems engineering
A tree-based reliability model for composite web service with common-cause failures
GPC'10 Proceedings of the 5th international conference on Advances in Grid and Pervasive Computing
QoS analysis for web service compositions based on probabilistic qos
ICSOC'11 Proceedings of the 9th international conference on Service-Oriented Computing
Generalized aggregate Quality of Service computation for composite services
Journal of Systems and Software
Analyzing qos for web service compositions by QoSDIST
ICSOC'11 Proceedings of the 2011 international conference on Service-Oriented Computing
GOS: a global optimal selection strategies for QoS-aware web services composition
Service Oriented Computing and Applications
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The quality of service (QoS) is a major concern in the design and management of Web service composition. Existing methods for QoS calculation either do not take the probability of path execution into consideration when QoSs are provided for different execution paths, or do not take different execution paths into consideration when a single integrated QoS is provided for the whole composition. In this paper, a comprehensive QoS analysis approach is proposed that calculates the QoS probability distribution by considering both the execution probability and execution conditions of each path in the service composition. Four types of basic composition patterns in the service composition are discussed: sequential, parallel, loop and conditional. In particular, a QoS solution is provided for all types of loop structured service composition.