An Efficient Approach for Service Process Reconfiguration in SOA With End-to-End QoS Constraints

Using SOA, service processes can be composed statically or dynamically using services provided by different service providers. Some services may become faulty at runtime and cause the service process to violate the end-to-end Quality of Service (QoS) constraint. This paper proposes an efficient approach for replacing faulty services to ensure that the reconfigured service process still meets the original end-to-end QoS constraint. The authors uses an iterative algorithm to identify reconfiguration regions that have a small number of services, some faulty and some healthy, in order to have more service selection options.