In SOA (Service-oriented Architecture), web services consist of five steps: service publishing, service discovery, service composition, service binding and service execution. Faults may occur during every step and cause failure of service execution. Traditional architecture-based reliability models are inapplicable to web services. In this paper, a staged reliability model for web services is proposed which divides the model into multistage model based on the faults occurred at every step. This model considers more failure factors than traditional model.
['Chunli Xie', 'Bixin Li', 'Xifeng Wang']
A Staged Model for Web Service Reliability