Workflow Scheduling Algorithms in Cloud Environment - A Survey

Cloud computing is an emerging IT field. In cloud, service providers managed and provided resources to users. Software or hardware can be used on rental basis; there is no need to buy them. Most of the cloud applications are modeled as a workflow. In workflows to complete the whole task applications require various sub-tasks to be executed in a particular fashion. Key role in cloud computing systems is managing different tasks. Workflow scheduling is the most important part of cloud computing, because based on the different criteria it decides cost, execution time and other performances. This review paper describes about cloud computing introduction, basics of workflows and scheduling, some scheduling algorithms used in workflow management, factors considered by these algorithms, type of algorithm and tool used.