Research On Some Key Technologies Of Service Engineering And Service System In SSME

With the further opening of the Internet and technology evolution, networks, services, data and resources toward shared, on-demand, and the tendency of promoting utility. Services science and engineering technology has aroused great concern to the industry. The maturity of the network environment and the refinement of social division of labor make service-oriented software architecture have broad prospects for development. Changes in the social division of labor led to a variety of new service providers and service consumers.Distribution of resources in the network has become accessible, as needed, third-party services can be combined to reuse, provided by service providers outside. Service consumers with service-oriented engineering approach, by modeling, find, binding, orchestration, integration and testing of iterative process develop complex distributed applications.The atomic services as the network nodes and the relationships of services combination as the network edges constitute the networked service system based services provision environment. At present the service science and engineering research are mainly focus on service discovery, service composition, service reputation and other key technical of the service computing. However the basic theory of service science, in particular, the methodology for service engineering, the creditability and complexity mechanism of service system such key issues as research is still in early research and exploration.Several key points of service engineering and service system are researched in this dissertation. In order to solve the systematic, standardized, quantitative method to guide the process of development and maintenance service system, a new three-dimensional structure model of methodology for service engineering is proposed. For the use of specialized common services to construct a mature, safe, reliable open service platform system for industrial applications and users, the dissertation presents a new horizontal and layered service opening and integration framework-an service delivery open platform architecture. In order to solve the trust security of service delivery platform in the open network environment, and the credibility of networked services, a new cross-domain tandem trust model is proposed. At the same time, considering the complexity of service system, as a supplement of the research, the dissertation also discussed complex network theory, proposed a service system complexity metrics and the set of metric parameters.The dissertation is divided into seven chapters:Chapter 1, gives a brief introduction of the research background and discussed the challenges and key problems in service engineering and system; Chapter 2, introduces the basic services and service science theory and discusses the internal motivation of service innovation and development; Chapter 3, presents a new methodology model for service engineering consisting of the service blueprinting architecture design and service entire life-cycle management; Chapter 4, describes a new service open delivery platform and its functional modules; Chapter 5, presents a new trans-domain convergence trust model; Chater 6, as a supplement of the research, presents a new service system complexity metrics and the set of metric parameters; Chapter 7, make a summary on our research and give a glance on the future work.(1) A three-dimensional structure model of service engineering methodology (MSE-TDS) is presented here to realize the engineering process guidance for life cycle management to develop, implementation, operation management and optimization of service system. Based on eTOM and HSM, the model consists of the service blueprinting architecture design (MSE-SBAD) and the service systems engineering lifecycle management (MSE-SLM). It has been got the whole process of building applications, in the National Key Project of Scientific and Technical Supporting Program "Research on common service integration technologies", and the verification of the proposed MSE-TDS model methodology feasibility and correct. (In Chapter 3)(2) Based service engineering methodology guidance, a new hierarchical level of service opening and integration framework-service delivery open platform architecture (SDOP) has been presented here to solve the traditional architecture of the inherent defect. SDOP platform uses horizontal, layered way, to support the platform with an open framework of the aggregate capacity of different services, and provides standardized specification for common service access and integration to support the standardization of integrated service capabilities. In addition, by introducing the telecom business operation support system related to theoretical and practical experience, a mature common service operation support system is builded for end to end services operation support, so as to introduce the MSE-SLM service protection mechanism to support the standardization operation and continuous services for SDOP platform. The SDOP architecture has been applied in the "modern service integration and operation support system", supported by the National Science and Technology Plan subject, and verified the correctness and feasibility. (In Chapter 4)(3) A trans-domain convergence trust model (TCTM) has been presented here to solve the cross-platform, cross-trusted domain authentication problem of service system. This model makes use of interoperability convergence platform to integrate the root certificates, certificate paths and CRL which belong to the different domains. CA's within a domain can select trust model at will, and the trust among domains employ the convergence platform to implement trans-domain authentication. The TCTM trust model has been applied in the electronic authentication certificate interoperability platform, and verified its correctness and feasibility. (In Chapter 5)(4) Based complex network theory, a metrics for service system and metric parameters (MSS) has been presented here to solve complexity of service system. By the method of service system complexity metrics, a new service composition framework of dynamic on-demand based on perception and service composition algorithm is proposed, which give the utility and validity verification of measurement methods and metrics set of. (In Chapter 6)...