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Cloud computing environments facilitate applications by providing virtualized resources that can be provisioned dynamically. The advent of Cloud computing as a new model of service provisioning in distributed systems, encourages researchers to investigate its benefits and drawbacks in executing scientific applications such as workflows. There are a mass of researches on the issue of scheduling in cloud computing, most of them, however, are bout workflow and job scheduling. A cloud workflow system is a type of platform service which facilitates the automation of distributed applications based on the novel cloud infrastructure. In this paper, the authors have reviewed different types of workflow scheduling algorithms. The main aim of this work is to study various problems, issues and types of scheduling algorithms for cloud workflows.
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