A Cloud QoS Risk Elements Transmission GERT Network Model

10.6186/IJIMS.201806_29(2).0004

Cunbin Li；Baojun Sun

Risk transmission ； QoS risk ； cloud service ； risk elements

International Journal of Information and Management Sciences

29卷2期（2018 / 06 / 01）

205 - 219

英文

Due to the characteristics of dynamic, virtualization and widespread uncertainties or threat in cloud oriented computing environment, cloud Quality of Service violation is of frequent occurrence, which resulting in low cloud consumer satisfaction and economic loss. This paper raised the cloud Quality of Service Risk Elements transmission model based on cloud workflow inspired by Graphic Evaluation and Review Technique. We construct the model by choosing the QoS criteria of cloud services as risk elements, paths in workflow graph as risk element transmission route. We use moment generating function and Mason formula to calculate risk level of cloud workflow. Finally, we give a case study of the model.

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