QGWEngine: A QoS-Aware Grid Workflow Engine

Grid workflow can be executed based on the parameters of some newly introduced non-functional properties such as QoS to satisfy the customer expectations better. Here we propose a QoS-aware grid workflow engine called QGWEngine. First, the supported QoS parameters and the grid workflow model are introduced. Then the architecture of QGWEngine is explained. Finally, the validity of QWGEngine is illustrated through a hypothetical grid workflow example.