Architecture Design Of Display Layer Of Web-based System Engineering Modeling Platform

With the development of technology today,while designing complex product is becoming more and more difficult,people are also raising more complex requirments than before.Therefore,in this field,graphical system engineering modeling software based on the theory and practice of model-based systems engineering(MBSE)is becoming more and more important.At present,there are some mature MBSE modeling software abroad,but such type of large-scale industrial modeling softwares are inevitably heavy in common.They are often complex to install and update,uneasy to configure,and time-consuming to load programs.Nowadays,with the rapid development of network technology,web-based modeling platforms are gradually becoming popular,but these modeling platforms are difficult to support complex modeling operations.M-Design proposed in this article is a web-based MBSE modeling platform combining the advantages of both mentioned before.It combines the lightweight characteristics of web modeling platform,and solves the problem that general web-based modeling platform can't support complex modeling calculation by separating display and calculation to front-end and back-end.In the field of web-based MBSE modeling,our research results have certain leading significance.In order to realize the separation,we innovatively propose a three-layer architecture including display layer,model adaptation layer,and model layer.This article will focus on the architecture design and business organization of the display layer.The work of this paper mainly solves the problem of how the graphic elements are combined with model elements and the graphic controls,and based on this,the graphic interaction design is performed.We will introduce the structure and behavior of graphic elements.Based on the standards proposed by OMG and combining the characteristics of M-Design,we have created a set of graphic elements that can integrate model semantics and support graphic interaction.The resource pool and characteristic tree structure are also proposed to solve the problem of the overall organization of the logical semantics of graphic elements.The article introduces how graphic elements are combined with other modules in the system through the creation and deletion of graphic elements,and describes the rollback and transaction organization strategies of graphic elements.Finally,the article also introduces some other major technical points,including graphic drawing and rendering,graphic interaction,drag optimization,and line routing.M-Design can support the basic MBSE modeling functions,and supports two models of direct modeling and graphic modeling in the modeling method,and the two modeling methods can be used at the same time.In order to support the above functions,we have also done some other work,which will be introduced in the article.