基于关系依赖模型的微服务流程演化分析

Business process and service evolution analysis based on relationship dependency model

微服务技术的快速发展为企业系统集成和网络化业务协同提供了技术支持,软件服务系统中的流程需要不断演化以适应业务变化的需求,而现有的研究多从单一维度评估服务流程演化的影响.提出包括流程层和服务层在内的服务系统双层依赖关系模型DoubleDM,从服务演化和流程演化两个方面分析服务系统演化问题.针对服务层演化,基于服务间的依赖关系分析服务变更的影响范围,给出了服务依赖关系表达、依赖关系演化影响范围及求解和相应算法;针对流程演化的不同类型,给出了流程依赖基础上的流程化简处理步骤和算法.最后给出了微服务系统中流程演化的实现逻辑,并以微服务系统处理供应链销售流程为例进行了分析.

The rapid development of microservice technology provides technical support for enterprise system integration and network business collaboration.The process in software service system needs to evolve continuously to adapt to the needs of business changes.Existing researches mostly assess the impact of service process evolution from a single dimension.This paper proposes a two-layer dependency model,DoubleDM,for the service system including the process layer and the service layer to analyze service system evolution from two aspects:service evolution and process evolution.Regarding to the evolution of the service layer and the analysis of impact range of service modification based on the dependency between services,the expression of service dependency,the influence scope of dependency evolution and the solution with corresponding algorithm are given.For process layer evolution with various types,the process simplification algorithms on the foundation of process dependency is given.Finally,the implementation logic of the process evolution in the microservice system is proved,and the analysis is carried out by taking the example of microservice system to deal with the supply chain process.