一种服务质量感知的网格工作流引擎

QoS-aware Grid Workflow Engine

引入服务质量等非功能特性作为网格工作流的调度依据,可以使得网格工作流的执行和调度围绕服务质量的参数体系进行,能够更好地满足最终用户的要求.提出一种服务质量感知的网格工作流引擎QGW Engine,介绍QGW Engine支持的服务质量参数体系和所基于的网格工作流模型,给出QGW Engine的系统结构,并通过一个假想的网格工作流的例子验证了QGW Engine的有效性.

QoS is introduced into grid workflow,and that the selection and execution of Grid workflow can be carried out based on the QoS parameters makes the grid workflow satisfy the customer expectations better. A QoS-aware grid workflow engine called QGWEngine is proposed. First, QoS parameters and a grid workflow model are introduced. Then the architecture of QGWEngine is proposed. Finally,the validity of QWGEngine is illustrated through a grid workflow example.