【作者】 马建威；

【导师】 罗雪山；

【作者基本信息】 国防科学技术大学 ， 军事运筹学， 2009， 硕士

【摘要】 随着军事变革和信息技术的发展,传统的指挥控制系统已经无法满足联合作战的需求,由于服务的松耦合、可复用等特点,下一代指控系统必然是基于面向服务思想构建的。目前商用SOA系统已经得到成熟的应用,服务在军事领域的应用研究也开始成为众多专家和学者研究的焦点,但是由于军事领域的特殊性,目前还存在许多的问题,包括需求描述问题、可信研究问题以及关联分析问题等。针对军事活动的粗粒度需求以及军事活动中服务的可信性和关联性等关键属性缺乏合理分析的问题,本文主要研究了以下内容:(1)讨论了军事信息服务的基本概念,分析了军事信息服务的特征、分类以及军事信息服务组合的相关概念和特征。讨论了军事信息服务的概念,分析了军事信息服务的特征,并针对该特征探讨了军事信息服务的分类,在此基础上讨论了军事信息服务组合的概念和特征,建立了军事信息服务QoS指标模型,详细分析了新型指控系统军事信息服务QoS应具备的各种关键属性。在此基础上,提出了军事信息服务QoS数据的处理方法,包括QoS数据的监控、管理、计算,并对组合服务QoS计算方法做了探讨。(2)分析了军事领域的需求特点,针对该特点提出了相应的基于粗粒度需求的军事信息服务组合方法。提出了一种基于粗粒度需求的服务组合优化方法。该方法把满足用户某一粗粒度需求的服务实例抽象为一类服务集合,依照业务流程关系将不同集合联系起来形成可行解;结合用户具体的功能需求,将不同服务集合内的服务实例科学地组合起来,形成满足功能需求且具有最优QoS指标的服务集合,并与具备复合功能的服务进行比较,最后形成优化解。(3)分析了军事信息服务组合过程中面临的信任问题,提出了支持可信判断的军事信息服务组合方案。对QoS来源进行分析,建立了相应的系统结构,为服务提供者和服务推荐者划分信任级别,给出了可信度的量化方法,根据社会交往方式量化了直接经验和间接经验在可信判断中的作用,并以此构建了QoS的计算模型,将服务可信性作为服务组合的重要指标来进行研究,实现了基于服务可信的军事信息服务优化组合策略,设计了相应的算法。(4)分析了军事信息服务之间的关联关系,提出了支持服务关联的军事信息服务组合方案。对服务的形式化描述作了修正,提出了基于服务关联的服务匹配算法,提高了服务组合的效率和准确性。基于本文研究的构建方法设计实现了军事信息服务组合演示原型系统,给出了该原型系统总体结构,介绍了各功能模块的实现和接口。通过对该原型系统的应用,证明了本文提出的指控能力包构建方法的可行性和实用性。更多还原

【Abstract】 As the development of information technology and military reform, the traditional command and control system can’t meet the need of joint operations. Next generation of command and control system must be based on the thoughts of service-oriented because of the characteristics of service. As the SOA systems have been used widely in business area, research on the application of SOA systems in millitary area has been the focus of many reseachers. But because of the specialties of millitary operations, there are many problems in the application of service-oriented method. For example, most of exist methods can not express millitary demand exactly, or can not fulfill the security demand, or neglect the relationship of services. The thesis researches mainly on the matters listed hereinafter:(1) Fundamental concepts and general characteristics of millitary information service and millitary information service composition are researched.The basic concept of millitary information service, the key attributes of QoS model and the classification are put forward. Based on these, the concept and characteristics of millitary information service composition are reserched, the methods in dealing with the QoS data of millitary information service are proposed, which includes the collection, guidance and computation of QoS data. Then the method of computing composite service QoS data is proposed.(2) Coarse-granularity requirements in millitary operations is analysed, based on which millitary information service composition method is proposed.A composition method of millitary information service based on coarse-granularity demand is proposed. It accumulates the services which can fulfill a single desire of the request into a kind of service set, and then composes the set of services into the feasible results according to business logic relation. With the detail of user’s request, it composes the services of the service set into an optimal result and then forms the optimal path by comparing the optimal service set and the services which has multiple functions.(3) The trustworthy problem in constructing service compostion is analysed, then the compostion method which can solve the problem is proposed.This method analyses the source of QoS data and proposes relevant system architecture, then proposes an algorithm to formulate the QoS dependability. According to the social manner, it gives an introduction of direct evidence and indirect evidence in QoS computation, differentiates the function of direct evidence and indirect evidence, and then proposes the model of QoS computation. It further designs a service composition optimize mechanism considering the trust and gives corresponding algorithms.(4) The relationship of millitary information services are analysed, then the method which can analyse the relation of services efficiently is proposed.This method modifies the express form of service and proposes an algorithm of service mapping, it increase the efficiency and exactness of millitary information service compostion.A prototype of Millitary Information Service Compostion Demo Platform is designed and constructed based on the construction methods which are studied in this dissertation. The prototype architecture and the implementation and interfaces of every function module are presented. The use of this prototype proves that the method of millitary information service composition studied in this dissertation are correct and practical.更多还原