The Research Of Component Composition Mechanism Based On DDS Architecture

At present,rapidly expanding software industry promotes rapid growth of national economy , is also a powerful guarantee for protecting national independence and sovereignty.How to improve software productivity,extend the software life cycle,enhance software maintainability and scalability,has become the focus of concern in the world.The paper gives a detailed research and description all the general questions from above,which based on DDS(Data Distribution Service ) Architecture & CBSD ( Component-Based Software Development) and combined with related projects.Firstly,this paper researches the DDS model and CBSD theories. Secondly,this paper has a research on Component Model based on distributed architecture(DDS)and proposes an adaptation of the architecture of Component Model,a data driven component mode(lDDCM)and gives specific formal specification.On this basis,the paper uses the basic theory of Petri nets to describe sequence,selection,parallel and circular four kinds of formal description of component composition mechanisms,gives hierarchy Petri Net based DDCM component composition framework and conduct a reliability verification test.Finally,this paper verifies the advantages of component composition mechanisms based on distributed architecture(DDS)in the application software design and rapid realization through the component composition of supporting environment,Integrated Design System.This paper proposes concrete solutions to some key problems concerning the present architecture-oriented for distributed software development,which is of importance for the further theoretical research on component model and component composition mechanism,as well as for solving the practical in distributed architecture and component composition technology integration.