【作者】 陈应东；

【导师】 崔铁军；

【作者基本信息】 解放军信息工程大学 ， 地图制图学与地理信息工程， 2008， 博士

【摘要】 空间信息服务模式是从空间信息服务的实践中产生的,是从各种不同空间信息服务方式中抽象出来的。目的是探索空间信息服务的内在规律,找出不同空间信息服务方式之间的共性,建立它们之间的共享方式和互操作方法,才能充分发挥已有空间信息服务系统的作用,同时科学地指导今后空间信息服务的建设。本文从这个目的出发,对空间信息服务的模式进行研究。首先,本文创新性提出了适合空间信息特点的空间信息服务模式组成结构,并详细论述了空间信息服务模式的基本组成要素和特征,以及空间信息服务模式的衍变规律,以此来解释各种空间信息服务方式的内在规律。目前所出现的每个空间信息服务应用都可以理解为本模式所衍变出来的一种服务活动过程,这些服务活动过程在不同服务策略与约束条件下就转变成针对具体应用目的的空间信息服务方式。其次,本文阐述了面向服务的空间信息服务活动过程的实现架构与运行流程。在SOA架构设计路线与实现策略的基础上,提出了空间信息服务超市的思想。即把空间信息相关的一切资源和行为都以服务的方式进行包装和发布,通过服务之间相互调用的方式进行不同空间信息服务活动的组合,从而实现可衍变的服务活动过程。同时,本文提出了一种空间信息服务资源管理体系,对空间信息服务相关的一切资源进行有效的管理。在这个体系中,一切都是服务,包括用户的需求、服务的功能和空间信息资源本身等可以做为符合特定规范和要求的服务进行描述和发布,从而使这些服务可以在这个框架内很容易被发现和调用,灵活动态地以服务组合的方式实现可衍变的空间信息服务活动的过程。最后,本文创新性提出了基于拓扑结构的描述服务之间关系的方法,作为实现SOA架构下空间信息服务模式服务策略与约束条件的基础。首先建立基于语义的服务描述模型,然后详细地阐述了服务拓扑的基本元素、基本关系和拓扑描述等内容,介绍了建立服务拓扑的基本方法和过程,最后建立了空间信息服务拓扑关系的描述结构;并就基于服务拓扑关系的空间信息服务活动过程的构建和事物管理等活动实施中的具体行为进行了说明,提出了基于SOA架构的空间信息服务模式实践中的服务策略与约束方案;文中最后进行相应的核心技术实验,并结合具体的项目进行验证。更多还原

【Abstract】 Spatial information service mode arises from the practice of spatial information service, which is abstracted from all kinds of different spatial information service methods. It needs to explore the inherent law of spatial information service, finding the commonness among different spatial information service, setting up their connection, fully play the function of existed spatial information service system, meanwhile scientifically instruct the construction of future spatial information service. With this purpose, this article is making research towards spatial information service mode.At first, the article creatively brings forward spatial information service mode that suitable to spatial information characteristics, and elaborates the basic structure and characteristics of spatial information service mode, also its evolving principle. It explains the inherent law of present all kinds of spatial information service methods. At present every existed spatial information service application could be understood as a kind of service activity process evolved by this mode. Under different service strategy and restricting condition, these service activity processes changes to spatial information service method aiming at specific application purpose.Secondly, the article elaborates the realizing method and flow facing spatial information service activity process. On basis of SOA architecture designing route and realizing strategy, it creatively brings forward the view of spatial information service supermarket. That is to package and issue all the resources and behaviors relative to spatial information in service way, combining different spatial information service activity by transferring among services, then to realize evolvable service activity process.Meanwhile, the article brings forward one administrating frame of spatial information service resources, which effectively manages all resources relative to spatial information service. Inside this frame, everything is service, including users’ demand, service function and spatial information resources, all could be described as service according to special criterion and demand. Then it makes these services easily to be found and transferred in the frame, flexibly and actively realizes evolvable spatial information service activity process, in the way of service combination.At last, the article creatively submits a new way to describe service relationship, as main strategy and restriction to realize spatial information service mode under SOA architecture. This method firstly establishes service describing modal basing on semantic, with this basis, it fetches in the idea of topological structure, then sets up topological relationship among spatial information service. The article elaborates service topology’s basic element, basic relationship and topology description, etc., describing the basic method and process of establishing service topology. It thoroughly sets forth setting up spatial information service activity process, on base of service topological relationship; and detailed behavior during managing activity performance. It puts forward a complete service strategy and restricting scheme, which is basing on SOA architecture, practicing spatial information service mode. With this foundation, it carries out corresponding experiment, verifies with specific project combination.更多还原