基于Petri网的产品研发设计工作流的柔性建模方法

为了解决复杂产品研发设计工作流建模问题,提高产品研发设计工作流管理系统在运行中对动态变化的响应能力,提出了一种基于Petri网的柔性建模方法。该方法结合面向对象和分层的思想对Petri网进行扩展,利用优先级、变迁触发规则等属性规则描述了模型的柔性。该方法不仅可以降低产品研发设计工作流建模的复杂度,还可以支持产品研发设计工作流管理系统对资源调度、动态选择和异常响应的柔性控制。最后通过一个实例说明了该方法的可行性。

A flexible modeling method for product development design workflow based on Petri net

In order to solve the modeling of complex product development design workflow and improve the response ability of product development design workflow management system to dynamic changes in operation,a flexible modeling method based on Petri net was proposed.This method extended the Petri net with object orientation and hierarchical thinking,and described the flexibility of the model by using attribute and rules such as priority and transition trigger rules.This method can not only reduce the complexity of workflow modeling,but also support the flexible control of resource scheduling,dynamic selection and abnormal response of workflow management system.An example is given to illustrate the feasibility of this method.