A QoS Negotiation Protocol for Grid Workflow

Abstract

Grid workflow is an important technique to implement cooperation of services in a grid. QoS allows for the selection and execution of grid workflow to better fulfil customer expectations. Before the execution of a workflow, users need to provide the QoS requirements, and then the workflow service evaluates the requirements and returns the evaluation results. This paper proposes a QoS negotiation protocol to support such negotiation process and also introduces the architecture of supporting software system