Modeling And Design Technologies For C4ISR System Architecture

Architecture technique has become a crucial means of top-level design for weapon equipment systems in many countries,and gradually shows its notable advantages and great potential.It strongly supports for military transformation and the construction of informationalized weapon equipment systems.At the same time,C4ISR() architecture has become an important tool to analyze,validate,and evaluate system capability and operational concepts,and a means of building of weapon equipment systems,purchase decision-making,and assurance of system interoperability.Along with the shift from "platform-centric warfare" to "network-centric warfare" and the emergence of new concepts such as capability-based and service-oriented,the size and complexity of C4ISR systems are increasing quickly.When developers use traditional architecture technique to design and develop C4ISR architectures,they encounter many problems,for example,insufficient ability to describe system capability,lack of C4ISR architecture meta-model,and the absence of object-oriented design and development process and metrics and validation for C4ISR architecture.This leads to the delay of development cycle,an increase in development costs,unassured quality of developed systems,and so on.The dissertation is supported by 11^th five-year national defense pre-research project titled "General Blueprint of Navy C4ISR Systems" under the grant of No.10107010101.From the perspective of top-level design for C4ISR systems,this paper analyzes and investigates some key problems of architecture technique such as C4ISR architecture,architecture modeling,design method,development process,and architecture validation.The main contributions and innovation work of the dissertation are presented as follows: (1) Based on operational view,system view,and technology view, we introduce the capability-based framework for C4ISR architectures, add a capability view and its relevant products,and extend and modify some products of operational view and system view.Furthermore,this paper defines the key elements of capability view,operational view, and system view,establishes the mapping relationships among these elements and the triangle mapping relationships among capability view, operational view,and system view,so as to implement the association and mapping between capability view and operational view,system view, and technology view.(2) This paper proposes a UML-based meta-modeling method for C4ISR architectures.We utilize UML profile such as stereotype and constraint to add tags of time and state in meta-model of UML sequence diagram so as to build the meta-model for behavior model of C4ISR systems,which provides uniform terminology,strict semantic and logical representation for C4ISR architectures.This helps developers to realize the description of time and state,and provides a basis for architecture validation.(3) Component-based architecture-oriented C4ISR architecture design method treats operational node and system node and requirement line and connection as components and connectors of a system, respectively.On requirement analysis of overall capability of a system,we design capability requirement and quality attributes of C4ISR systems,implement the distribution from capability view to operational view and system view,set up behavior model and deployment model of a system,and provide a feasible design method for C4ISR systems that supports reusable and interoperable system design.(4) This paper presents a visual validation method for C4ISR architectures based on modeling and simulation.Integrating UMLstate diagram and sequence diagram,we visually compare sequence diagram derived from state diagram and designed sequence diagram in order to validate liveness,consistency,and temporal features of C4ISR architecture models.The scenario-driven state diagram of C4ISR architecture will dynamically create execution sequence diagram, visually simulate the evolution and running of C4ISR systems,and accomplish the validation for main functions and architecture of the system.