基于库所系统的增加类型变化传播分析

Change Propagation Analysis of the Add Type Based on the Place System

变化传播在许多软件领域都起着必不可少的重要作用,分析基于某种变化类型的传播范围更是一个难以忽视的问题。文中提出一种基于Petri网的库所系统,依据单向影响关系,分析添加增加类型变迁的变化传播范围的方法。首先,以某打车软件为例,建立打车软件客户端的库所系统,并插入一个增加类型的变化变迁。其次,利用单向影响关系,衡量库所系统原变迁集与所添加的增加类型变迁之间的影响关系。最后,根据增加类型变化传播影响范围公式,得出基于打车软件的库所系统,添加一个增加类型变化的传播影响范围。

Change propagation plays an important role in many software fields. It is a difficult problem to analyze the change propagation range of some type of change. This paper presents a method of analyzing the change propagation influence range,which inserting a transition of add type into a place system Based on Petri net on a basis of unidirectional influence relationship.Firstly, take a taxi software as an example, build a place system for car-hailing software, and then insert a change transition of add type into the system. Secondly, the influence relationship between the original change set of the system and the inserted transition of add type, which is measured by the unidirectional influence relationship method. Finally, according to the formula of change propagation influence range of a transition of the above inserted add type, it is concluded that the change propagation influence range of an inserted transition of add type Based on the place system of a car-hailing software.