关键词: 工作流, 资源配置优化, 分布函数, 排队问题

Abstract: The amount of cited resources in execution process of workflow model could be optimized. With the constraint of business remaining time in a workflow model, in order to minimize the resources consumption cost, assuming the business remaining time in each activity was an exponential distribution, a method was put forward to get the quantity of each kind of resources with the goal of minimized consumption cost of resources. The relationship of the distribution of business remaining time in the 4 basic structures of the workflow model and in the single activity was given. The relationship of the amount of each kind of resource and the whole resources consumption cost were analyzed. Finally, a resource optimization example based on the workflow model was given.

Key words: workflow, resources configuration optimization, distribution function, queue problem