Design and implementation of fault tolerance techniques to improve QoS in SOA
Edvard Martins de Oliveira, Júlio Cézar Estrella, Bruno Tardiole Kuehne, Dionisio Machado Leite Filho, Lucas Junqueira Adami, Luiz Henrique Nunes, Luis Hideo Vasconcelos Nakamura, Rafael M. de O. Libardi, Paulo Sérgio Lopes de Souza, Stephan Reiff‐Marganiec · 2014
Fault tolerance techniques can improve the trust of users in service oriented architectures as they can ensure data availability. This paper presents an implementation of a novel fault tolerance mechanism in a SOA architecture which simultaneously provides increased availability and better quality of service. In addition to this mechanism, a service selector using reputation ratings of the architecture components is discussed. The selection is based on information from past transactions of the components of the architecture, which allows to identify the best web services able to meet the requests of customers. The mechanisms are tested and a performance evaluation is presented to validate the results.