Due to the mobility and frequent disconnections, the correctness of mobile interaction systems, such as mobile robot systems and mobile payment systems, are often difficult to analyze. This paper introduces three critical properties of systems, called system connectivity, interaction soundness and data validity, and presents a related modeling and analysis method, based on a kind of Petri nets called VPN. For a given system, a model including component nets and interaction structure nets is constructed by using VPNs. The component net describes the internal process of each component, while the interaction structure net reflects the dynamic interaction between components. Based on this model, three properties are defined and analyzed. The case study of a practical mobile payment system shows the effectiveness of the proposed method.

中文翻译：

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基于可变Petri网的移动交互系统三性建模与分析

由于移动性和频繁断开连接，经常很难分析诸如移动机器人系统和移动支付系统之类的移动交互系统的正确性。本文介绍了系统的三个关键属性，称为系统连通性，交互性和数据有效性，并提出了一种基于称为VPN的Petri网的相关建模和分析方法。对于给定的系统，使用VPN构建了一个包含组件网络和交互结构网络的模型。组件网描述了每个组件的内部过程，而交互结构网则反映了组件之间的动态交互。基于此模型，定义并分析了三个属性。实际的移动支付系统的案例研究表明了该方法的有效性。