Modeling Of Distributed System With Multi-dimensional Features And Analysis Of Business Flow Security Characteristics

With the continuous development of distributed system and the continuous change of business requirements,distributed system gradually presents a new form with multidimensional features.It is mainly manifested in the multi-dimensional features of system deployment and task distribution.Especially in the military field,the above features are more obvious.However,there is a lack of research on the modeling method of distributed system with multi-dimensional features and the analysis method of system business flow security characteristics.It can not well support the iterative optimization in the process of system design.Therefore,how to model the distributed system with multi-dimensional features and how to analyze the security of system business flow become the urgent problems to be solved.To solve the above problems,this thesis proposes a distributed system modeling method with multi-dimensional features and the corresponding business flow security analysis method,so as to supports the iterative optimization in the process of system design.Firstly,this thesis deeply studies the distributed system and its multidimensional features,and proposes an extended "4 + 1" view modeling method.Based on the "4+1" view modeling method,this method proposes a multi-dimensional relationship coordination mechanism based on fault type transfer,and a multi view coupling method based on multi view component relationship.It extends the ability of "4+1" view modeling method to multi-dimensional features modeling.Secondly,the visualization method of system model is studied,and the graphic representation elements and semantic definitions of the system are given to support the visualization modeling of the system.At the same time,based on XML,the corresponding system description method and description specification are proposed to establish the foundation for the subsequent security analysis.Thirdly,combined with the possible problems in the system business flow and the needs of practical application,the hierarchy and indicators of business flow security analysis are determined,and then the analysis algorithm of each indicator is proposed.Finally,a prototype system is designed and implemented.Based on the system,a series of experiments are designed to analyze the feasibility and modeling ability of the system modeling method,and verify the effectiveness of each analysis algorithm.The results show that this method can effectively support the modeling of distributed system with multi-dimensional features and the analysis of business flow security characteristics.It is of great significance to the iterative optimization in the process of system design.