面向空间信息的Web协同关键技术研究
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摘要
自从第一个地理信息系统(Geographic Information System, GIS)于上世纪60年代在加拿大诞生以来,地理系统信息平台和应用系统在计算机技术发展的支撑下在近50多年内取得了惊人的进步,已经被逐渐应用于环境评估、资源调查、大众服务、定位导航、灾害预测、国土管理、城市规划、电信通讯、交通运输、水利电力、农林牧业、统计和商业金融等领域。
近年来,随着Internet技术的发展和信息系统的普及,用户提出了共享分布在不同地域、不同部门的空间数据和处理功能需求。这种空间数据的共享和互操作使得空间信息不再局限于服务专业用户,而是更容易地被广泛的普通用户访问和使用。同时许多部门都根据自己的业务需求开发了地理信息应用系统,实现了空间数据共享,且在实际工作中发挥了很大的作用。然而,随着应用程度的不断深入,也暴露出了许多问题。这些问题主要体现在如下几个方面：
1)WebGIS的协同能力有限
WebGIS技术主要关注地图的发布和展示,在操纵方式和功能方面考虑较少,因此往往只能提供功能相对简单的查询操作,或少量的空间数据的操作,不能实现复杂的一体化空间信息操作,更不能满足分布式环境下互操作的要求。
2)空间信息和业务协同的力度不够
空间应用系统间相对独立,系统间缺乏良好的共享能力和互操作性,不同的空间应用系统使用不同空间信息处理平台建立与维护数据,空间数据模型差异和不同空间信息应用系统对空间数据的要求都直接影响深层次的互操作。应用系统内耦合度较高,在开发和设计时较少的考虑与第三方系统的融合和互操作,形成现有系统间协同操作的障碍,难以灵活地组合不同应用系统提供的功能以为更多的应用提供统一服务。
3)缺少支撑空间信息的工作流引擎
地理信息系统拥有丰富的空间数据和属性数据,并且具有丰富的空间操作和空间分析能力,但却缺乏良好的共享机制,更缺少对复杂的信息处理过程进行建模和管理的有效机制。而工作流技术在这些方面则有着明显的优势,因此引入工作流技术对空间信息操作和空间数据直接予以支撑,以对空间信息应用系统中的流程进行建模和管理是非常有必要的,也具有非常积极的意义和前景。
4)空间信息协同系统中的安全性考虑不足
现在地理信息平台和空间信息应用系统对于分布式协同环境下的安全性方面考虑较少,主要涉及到认证、权限控制等系列问题
5)缺少灵活的Web空间应用框架
空间信息应用系统的开发大多数是针对特定的应用环境的,缺少满足多数空间信息系统的基础框架,难以实现业务过程的业务端的实时构造,灵活的适应多变的业务过程,并在基础框架上快速构建空间信息应用系统。
在此背景下,要求空间信息应用逐渐由传统下的系统从数据高耦合、集中式、封闭式的模式向松耦合、分布式、开放式模式的方向发展。在Web Service和OpenGIS规范的支撑下,空间信息应用系统架构和应用模式正面临着新的机遇与挑战。基于这些新的理论和方法来管理、整合并实现空间信息数据共享,建立协同的空间信息应用机制,实现一体化的空间信息应用与服务模式、提供空间信息应用系统的快速构建也逐渐成为该领域在现阶段的首要任务。
本文“面向空间信息工作流的Web协同关键技术研究”在国家863计划项目——“面向网络海量空间信息的大型GIS"研究成果的基础上,使用空间信息服务和工作流技术协同技术,构建一体化的空间信息工作流服务,并力图在一个Web环境下提供集成应用基础框架,为空间信息应用系统的快速开发提供工具和手段,为解决我国当前Web环境下GIS协同应用所面临的一系列问题提供一个有效的解决方案。
具体研究内容如下：
1)深入研究了空间数据共享的模式,分析了现有空间信息服务的层次和体系结构,提出基于数据中心模式的空间信息服务架构模型,讨论并描述了数据中心模式下的空间信息服务架构的四层体系结构。
2)空间信息工作流将空间信息和工作流实现了有机的集成。首先讨论了空间信息工作流技术,随后给出空间信息工作流的模型,最后分析了数据中心模式下的空间信息服务的定义、描述和规范。
3)在讨论了基于角色的访问控制和工作流下的访问控制基础上,结合地理本体建模,提出了基于本体的权限管理技术,阐述了认证方法、安全子模型的架构和本体化方法权限计算算法,并给出算法示例。这种算法不仅能描述空间信息中的复杂安全访问策略,而且能够处理访问控制的约束条件,从而提高了系统的安全性,增强了GIS环境下空间信息安全控制的智能性。
4)讨论了引擎的业务规则,并重点讨论了多agent多实例下的工作流实例并发问题,并给出了相关算法。在此基础上利用空间信息来描述了空间信息工作流下的智能高度,随后给出了算法描述和实例分析。本章最后一节讨论了工作流引擎扩展的模型和方法。
5)空间信息服务最终以Web的方式形成人机界面,完成多层次、多方式的协同。本文结合前文的模型,给出了Web下的应用协同框架,讨论了框架扩展的方法。随后,介绍了该框架下搭建系统的方法,并给出了空间信息业务端的相关模型。在空间信息应用系统开发过程中,引入采用面向空间服务的表单方法来快速构建业务端,有效的避免了重复开发,加快了系统建设速度。
6)讨论了工作流模型实现的表结构,然后给出了原型系统web框架界面功能的展示、权限管理相关功能的描述,最后介绍了业务端系统的相关实现细节。基于空间信息服务的表单可以结合空间信息工作流来快速构建业务端,有效的避免了重复开发,加快了系统建设速度。系统模型已经在MapGIS中得到成功应用,实践中取得了很好的效果。
本文将工作流技术引入空间信息服务领域,研究利用工作流技术改善和优化空间信息服务,应用工作流技术来解决空间信息服务目前存在的一些难点问题如难以共享、服务聚合复杂、安全性考虑较少、协同支持程度低和开发复杂等问题进行了有益的探索。并对面向空间信息服务的Web下协同技术的关键实现技术进行了深入的研究,将工作流技术、本体、业务端构建等引入智能空间信息服务的研究中,主要创新点体现在以下几个方面：
1)把空间信息服务、数据中心模式有机地融合在一起,指出了空间信息服务协同的概念,提出了数据中心模式下的空间信息服务的集成方法和体系结构,分析了该体系结构的组成以及特点,为基于空间信息服务的GIS集成做出了有益的探索。
2)对空间信息服务协同的基础即工作流技术进行了深入探讨,研究了空间信息服务下工作流的交互方法,给出了空间信息工作流的定义和服务原语,以及常用GIS功能服务的接口定义,并对服务粒度的划分进行了探讨,建立了支持空间信息服务工作流引擎模型,给出了算法描述,为GIS空间信息服务协同奠定了服务基础。
3)将本体化方法引入到协同环境下的系统授权管理中,提出本体化空间信息授权管理机制,给出了实现模型。
4)讨论了空间信息服务和业务模型的集成相关问题。并有针对的给出了空间信息服务业务端快速构建的概念,在此基础上提出面向服务的业务端构建模型,实现了特定环境下GIS Web业务端的快速构建。
5)将Web技术引入空间信息协同服务应用的研究中,探讨了基于Web的空间信息协同服务的体系结构,并提出了相应的平台设计框架,实现了web协同系统的原型。
Since the first geographic information system has been developed in Canada in 1960s, the geographic information system platform and application system has made remarkable development along with the development of computer technology in the past 50 years. Now it has been increasingly applied to in environmental assessment, resource surveys, public services, GPS navigation, disaster prediction, land management, urban planning, communications, transportation, water conservancy, electric power, agriculture, forestry, animal husbandry, statistics and commercial finance and other fields.
In recent years, with the development of Internet technology and information systems, users want to share the spatial data and processing functions distributed in different regions and different departments. This spatial data sharing and interoperability makes the spatial information services are no longer confined to professional users, but to common users to access and use easily. Currently, many departments have developed geographic information application systems according to their business needs based on the spatial data sharement, and these systems have played a significant role during practical work. However, with the deeply application, there are also many problems. These problems are mainly reflected in the following aspects:
1) WebGIS's limited synergy
WebGIS technology is focused on the release and display of maps, and considers less in the manipulation methods and functions. So it usually only provides simple query functions or a small amount of spatial data operations, but cannot implement complex spatial information operations, as well as to meet the interoperability requirements in distributed environment.
2) Insufficient cooperation degree between spatial information and business
Spatial applications systems are relatively independent each other. There lacks good share ability and interoperability among these spatial systems because that different spatial application systems use different platform to establish and maintain spatial data. The different spatial data model and different demands for spatial data will both impact on the interoperability in deep level. The current application systems have a high coupling degree, considering less to the integration and interoperability to third party systems, so that it is difficult to combine different systems to get a unified service for more applications.
3) The inadequate capacity of Geographic Information Services combination
As the network and application systems change dynamically, the geographical information services based on them also change dynamically. So in practice we often use dynamic aggregation of spatial information operations in order to adapt to system expansion. Therefore, an effective combination of spatial information resources of space applications is important to spatial information application.
4) Lack of workflow engine to support spatial information
Geographic information systems have abundant spatial data and attribute information, as well as abundant spatial operations and spatial analysis capabilities. However, they lack of good sharing mechanism, as well as effective mechanisms on modeling and managing complex information processing process. The workflow technology has a clear advantage in these areas, so it's very important to introduce workflow technology into spatial information systems to model and manage workflow in spatial information system.
5) Inadequate security consideration in spatial collaborative information systems
Now geographic information systems consider less on security in distributed collaborative environment, mainly including authentication, access control and other problems.
6) Lack of a flexible spatial applications framework
The development of spatial information systems are mostly for special application environments, and there lack a basic framework to satisfy most spatial systems. This results on difficulty to implement business end in real time to adapt to the varied business process.
In the support of Web Service and OpenGIS specifications, the architecture and application model of spatial information system is facing new opportunities and challenges. It requires that systems change from traditional data high-coupling, centralized, closed modes to data loose-coupled, distributed, and open modes. So it becomes the primary task to manage spatial data sharement, establish collaborative mechanism, and achieve a unified service model for spatial information so as to build spatial application systems quickly based on these new theories and methods.
This paper -- "Research on spatial information-oriented Web collaborative workflow" is a sub task to "large-scale distributed GIS" standing on fruits of the national 863 project-"network-oriented large-scale spatial information GIS". Its main purpose is to establish a unified spatial information workflow service together with collaboration technology between spatial information service and workflow, as well as to provide an integrated application infrastructure framework for spatial information application system to provide tools for rapid development. So that it can give an effective solution to the problems emerging from the current WebGIS applications.
Specific studies are as follows:
1) Study deeply on spatial data sharing model, analysis the architecture of current spatial information services, put forward a spatial information service model based on data-centralized model, then discuss and describe its four-layer architecture concretely.
2) Integrate spatial information and workflow technology, then put forward a spatial information workflow model and analysis the definition, description and specification of spatial information service under data-centralized model.
3) Discuss the access control based on role and workflow, put forward authority management methods based on ontology, describe authentication methods, security model structure, as well as authority computation algorithm based on ontology, and gives an example finally. This algorithm can not only describe the complex secure access policies of spatial information, but also be able to handle access control constraints, thereby enhancing the system's security and strengthen spatial information security control intelligence in GIS.
4) Discuss business rules of the workflow engine, with a focus on the workflow instance concurrency issues under multi-agent and multi-instance, and then put forward the relevant algorithms. On this basis, describe the highly intelligent work process with spatial information workflow, and then give the algorithm description and case analysis.
5) Users can use the spatial information services through Web so as to implement multi-level and multi-way collaboration. This paper establishes a web collaborative application framework, and discusses the expansion approach of the framework. Subsequently, introduce how to build a system under this framework, and then gives related model of spatial information business end. During the spatial information systems'development process, building business end quickly with spatial service-oriented form method can avoid duplication of development and accelerate the system construction.
6) Discuss the table structure implemented by workflow model, and then give a prototype framework, describe rights management-related functions, finally introduce the implementation details about custom forms. Forms based on spatial information services can build business end quickly by combining with spatial information workflow. This technology can avoid duplication of development and accelerate the system construction. The model has been successfully applied in MAPGIS in practice and achieves good results.
This paper introduces workflow technology into the spatial information field, research's on how to improve spatial information service combined with workflow technology, so that it can solve a series problems such as difficulty in sharing, service combination complexly, less consideration in security, less degree in cooperation and complex development. We deeply research the key technology of Web collaboration of spatial information service, and introduce the workflow technology, business end establishment and ontology into intelligent spatial information service. The main innovation is reflected in the following areas:
1) Combine spatial information services and data-centralized mode gracefully, put forward the concept of collaborative spatial information services; present the integration method and architecture of spatial information service under data-centralized mode, together with analyzing the composition and characteristics of this architecture, so as to make a useful exploration of integrating GIS based on spatial information services.
2) Discuss the workflow technology deeply since it's the basis of collaborative spatial information services, study the interactive method of workflow with spatial information services, point to the definition and service primitive of spatial information workflow, as well as the interface definition of common GIS function services, discuss service granularity, establish a spatial information workflow engine, describe its algorithm relatively, and make foundation to collaborative spatial information service.
3) Introduce ontology-based method into the collaborative environment to manage system license, put forward the spatial information authorization mechanism based on ontology, and then give the implementation model.
4) Discuss the related integration issues about spatial information services and business model and design a method to establish spatial information business end quickly. On the base of this, put forward a service-oriented business model and implement the quick establishment of GIS Web business end under some special environment.
5) Point out that the spatial information services collaboration is a systematic project, discuss how to introduce Web technology into the spatial information service applications, study the architecture of Web-based collaborative spatial information services, arid then put forward the corresponding platform framework so as to implement a web collaboration system prototype.
近年来,随着Internet技术的发展和信息系统的普及,用户提出了共享分布在不同地域、不同部门的空间数据和处理功能需求。这种空间数据的共享和互操作使得空间信息不再局限于服务专业用户,而是更容易地被广泛的普通用户访问和使用。同时许多部门都根据自己的业务需求开发了地理信息应用系统,实现了空间数据共享,且在实际工作中发挥了很大的作用。然而,随着应用程度的不断深入,也暴露出了许多问题。这些问题主要体现在如下几个方面：
1)WebGIS的协同能力有限
WebGIS技术主要关注地图的发布和展示,在操纵方式和功能方面考虑较少,因此往往只能提供功能相对简单的查询操作,或少量的空间数据的操作,不能实现复杂的一体化空间信息操作,更不能满足分布式环境下互操作的要求。
2)空间信息和业务协同的力度不够
空间应用系统间相对独立,系统间缺乏良好的共享能力和互操作性,不同的空间应用系统使用不同空间信息处理平台建立与维护数据,空间数据模型差异和不同空间信息应用系统对空间数据的要求都直接影响深层次的互操作。应用系统内耦合度较高,在开发和设计时较少的考虑与第三方系统的融合和互操作,形成现有系统间协同操作的障碍,难以灵活地组合不同应用系统提供的功能以为更多的应用提供统一服务。
3)缺少支撑空间信息的工作流引擎
地理信息系统拥有丰富的空间数据和属性数据,并且具有丰富的空间操作和空间分析能力,但却缺乏良好的共享机制,更缺少对复杂的信息处理过程进行建模和管理的有效机制。而工作流技术在这些方面则有着明显的优势,因此引入工作流技术对空间信息操作和空间数据直接予以支撑,以对空间信息应用系统中的流程进行建模和管理是非常有必要的,也具有非常积极的意义和前景。
4)空间信息协同系统中的安全性考虑不足
现在地理信息平台和空间信息应用系统对于分布式协同环境下的安全性方面考虑较少,主要涉及到认证、权限控制等系列问题
5)缺少灵活的Web空间应用框架
空间信息应用系统的开发大多数是针对特定的应用环境的,缺少满足多数空间信息系统的基础框架,难以实现业务过程的业务端的实时构造,灵活的适应多变的业务过程,并在基础框架上快速构建空间信息应用系统。
在此背景下,要求空间信息应用逐渐由传统下的系统从数据高耦合、集中式、封闭式的模式向松耦合、分布式、开放式模式的方向发展。在Web Service和OpenGIS规范的支撑下,空间信息应用系统架构和应用模式正面临着新的机遇与挑战。基于这些新的理论和方法来管理、整合并实现空间信息数据共享,建立协同的空间信息应用机制,实现一体化的空间信息应用与服务模式、提供空间信息应用系统的快速构建也逐渐成为该领域在现阶段的首要任务。
本文“面向空间信息工作流的Web协同关键技术研究”在国家863计划项目——“面向网络海量空间信息的大型GIS"研究成果的基础上,使用空间信息服务和工作流技术协同技术,构建一体化的空间信息工作流服务,并力图在一个Web环境下提供集成应用基础框架,为空间信息应用系统的快速开发提供工具和手段,为解决我国当前Web环境下GIS协同应用所面临的一系列问题提供一个有效的解决方案。
具体研究内容如下：
1)深入研究了空间数据共享的模式,分析了现有空间信息服务的层次和体系结构,提出基于数据中心模式的空间信息服务架构模型,讨论并描述了数据中心模式下的空间信息服务架构的四层体系结构。
2)空间信息工作流将空间信息和工作流实现了有机的集成。首先讨论了空间信息工作流技术,随后给出空间信息工作流的模型,最后分析了数据中心模式下的空间信息服务的定义、描述和规范。
3)在讨论了基于角色的访问控制和工作流下的访问控制基础上,结合地理本体建模,提出了基于本体的权限管理技术,阐述了认证方法、安全子模型的架构和本体化方法权限计算算法,并给出算法示例。这种算法不仅能描述空间信息中的复杂安全访问策略,而且能够处理访问控制的约束条件,从而提高了系统的安全性,增强了GIS环境下空间信息安全控制的智能性。
4)讨论了引擎的业务规则,并重点讨论了多agent多实例下的工作流实例并发问题,并给出了相关算法。在此基础上利用空间信息来描述了空间信息工作流下的智能高度,随后给出了算法描述和实例分析。本章最后一节讨论了工作流引擎扩展的模型和方法。
5)空间信息服务最终以Web的方式形成人机界面,完成多层次、多方式的协同。本文结合前文的模型,给出了Web下的应用协同框架,讨论了框架扩展的方法。随后,介绍了该框架下搭建系统的方法,并给出了空间信息业务端的相关模型。在空间信息应用系统开发过程中,引入采用面向空间服务的表单方法来快速构建业务端,有效的避免了重复开发,加快了系统建设速度。
6)讨论了工作流模型实现的表结构,然后给出了原型系统web框架界面功能的展示、权限管理相关功能的描述,最后介绍了业务端系统的相关实现细节。基于空间信息服务的表单可以结合空间信息工作流来快速构建业务端,有效的避免了重复开发,加快了系统建设速度。系统模型已经在MapGIS中得到成功应用,实践中取得了很好的效果。
本文将工作流技术引入空间信息服务领域,研究利用工作流技术改善和优化空间信息服务,应用工作流技术来解决空间信息服务目前存在的一些难点问题如难以共享、服务聚合复杂、安全性考虑较少、协同支持程度低和开发复杂等问题进行了有益的探索。并对面向空间信息服务的Web下协同技术的关键实现技术进行了深入的研究,将工作流技术、本体、业务端构建等引入智能空间信息服务的研究中,主要创新点体现在以下几个方面：
1)把空间信息服务、数据中心模式有机地融合在一起,指出了空间信息服务协同的概念,提出了数据中心模式下的空间信息服务的集成方法和体系结构,分析了该体系结构的组成以及特点,为基于空间信息服务的GIS集成做出了有益的探索。
2)对空间信息服务协同的基础即工作流技术进行了深入探讨,研究了空间信息服务下工作流的交互方法,给出了空间信息工作流的定义和服务原语,以及常用GIS功能服务的接口定义,并对服务粒度的划分进行了探讨,建立了支持空间信息服务工作流引擎模型,给出了算法描述,为GIS空间信息服务协同奠定了服务基础。
3)将本体化方法引入到协同环境下的系统授权管理中,提出本体化空间信息授权管理机制,给出了实现模型。
4)讨论了空间信息服务和业务模型的集成相关问题。并有针对的给出了空间信息服务业务端快速构建的概念,在此基础上提出面向服务的业务端构建模型,实现了特定环境下GIS Web业务端的快速构建。
5)将Web技术引入空间信息协同服务应用的研究中,探讨了基于Web的空间信息协同服务的体系结构,并提出了相应的平台设计框架,实现了web协同系统的原型。
Since the first geographic information system has been developed in Canada in 1960s, the geographic information system platform and application system has made remarkable development along with the development of computer technology in the past 50 years. Now it has been increasingly applied to in environmental assessment, resource surveys, public services, GPS navigation, disaster prediction, land management, urban planning, communications, transportation, water conservancy, electric power, agriculture, forestry, animal husbandry, statistics and commercial finance and other fields.
In recent years, with the development of Internet technology and information systems, users want to share the spatial data and processing functions distributed in different regions and different departments. This spatial data sharing and interoperability makes the spatial information services are no longer confined to professional users, but to common users to access and use easily. Currently, many departments have developed geographic information application systems according to their business needs based on the spatial data sharement, and these systems have played a significant role during practical work. However, with the deeply application, there are also many problems. These problems are mainly reflected in the following aspects:
1) WebGIS's limited synergy
WebGIS technology is focused on the release and display of maps, and considers less in the manipulation methods and functions. So it usually only provides simple query functions or a small amount of spatial data operations, but cannot implement complex spatial information operations, as well as to meet the interoperability requirements in distributed environment.
2) Insufficient cooperation degree between spatial information and business
Spatial applications systems are relatively independent each other. There lacks good share ability and interoperability among these spatial systems because that different spatial application systems use different platform to establish and maintain spatial data. The different spatial data model and different demands for spatial data will both impact on the interoperability in deep level. The current application systems have a high coupling degree, considering less to the integration and interoperability to third party systems, so that it is difficult to combine different systems to get a unified service for more applications.
3) The inadequate capacity of Geographic Information Services combination
As the network and application systems change dynamically, the geographical information services based on them also change dynamically. So in practice we often use dynamic aggregation of spatial information operations in order to adapt to system expansion. Therefore, an effective combination of spatial information resources of space applications is important to spatial information application.
4) Lack of workflow engine to support spatial information
Geographic information systems have abundant spatial data and attribute information, as well as abundant spatial operations and spatial analysis capabilities. However, they lack of good sharing mechanism, as well as effective mechanisms on modeling and managing complex information processing process. The workflow technology has a clear advantage in these areas, so it's very important to introduce workflow technology into spatial information systems to model and manage workflow in spatial information system.
5) Inadequate security consideration in spatial collaborative information systems
Now geographic information systems consider less on security in distributed collaborative environment, mainly including authentication, access control and other problems.
6) Lack of a flexible spatial applications framework
The development of spatial information systems are mostly for special application environments, and there lack a basic framework to satisfy most spatial systems. This results on difficulty to implement business end in real time to adapt to the varied business process.
In the support of Web Service and OpenGIS specifications, the architecture and application model of spatial information system is facing new opportunities and challenges. It requires that systems change from traditional data high-coupling, centralized, closed modes to data loose-coupled, distributed, and open modes. So it becomes the primary task to manage spatial data sharement, establish collaborative mechanism, and achieve a unified service model for spatial information so as to build spatial application systems quickly based on these new theories and methods.
This paper -- "Research on spatial information-oriented Web collaborative workflow" is a sub task to "large-scale distributed GIS" standing on fruits of the national 863 project-"network-oriented large-scale spatial information GIS". Its main purpose is to establish a unified spatial information workflow service together with collaboration technology between spatial information service and workflow, as well as to provide an integrated application infrastructure framework for spatial information application system to provide tools for rapid development. So that it can give an effective solution to the problems emerging from the current WebGIS applications.
Specific studies are as follows:
1) Study deeply on spatial data sharing model, analysis the architecture of current spatial information services, put forward a spatial information service model based on data-centralized model, then discuss and describe its four-layer architecture concretely.
2) Integrate spatial information and workflow technology, then put forward a spatial information workflow model and analysis the definition, description and specification of spatial information service under data-centralized model.
3) Discuss the access control based on role and workflow, put forward authority management methods based on ontology, describe authentication methods, security model structure, as well as authority computation algorithm based on ontology, and gives an example finally. This algorithm can not only describe the complex secure access policies of spatial information, but also be able to handle access control constraints, thereby enhancing the system's security and strengthen spatial information security control intelligence in GIS.
4) Discuss business rules of the workflow engine, with a focus on the workflow instance concurrency issues under multi-agent and multi-instance, and then put forward the relevant algorithms. On this basis, describe the highly intelligent work process with spatial information workflow, and then give the algorithm description and case analysis.
5) Users can use the spatial information services through Web so as to implement multi-level and multi-way collaboration. This paper establishes a web collaborative application framework, and discusses the expansion approach of the framework. Subsequently, introduce how to build a system under this framework, and then gives related model of spatial information business end. During the spatial information systems'development process, building business end quickly with spatial service-oriented form method can avoid duplication of development and accelerate the system construction.
6) Discuss the table structure implemented by workflow model, and then give a prototype framework, describe rights management-related functions, finally introduce the implementation details about custom forms. Forms based on spatial information services can build business end quickly by combining with spatial information workflow. This technology can avoid duplication of development and accelerate the system construction. The model has been successfully applied in MAPGIS in practice and achieves good results.
This paper introduces workflow technology into the spatial information field, research's on how to improve spatial information service combined with workflow technology, so that it can solve a series problems such as difficulty in sharing, service combination complexly, less consideration in security, less degree in cooperation and complex development. We deeply research the key technology of Web collaboration of spatial information service, and introduce the workflow technology, business end establishment and ontology into intelligent spatial information service. The main innovation is reflected in the following areas:
1) Combine spatial information services and data-centralized mode gracefully, put forward the concept of collaborative spatial information services; present the integration method and architecture of spatial information service under data-centralized mode, together with analyzing the composition and characteristics of this architecture, so as to make a useful exploration of integrating GIS based on spatial information services.
2) Discuss the workflow technology deeply since it's the basis of collaborative spatial information services, study the interactive method of workflow with spatial information services, point to the definition and service primitive of spatial information workflow, as well as the interface definition of common GIS function services, discuss service granularity, establish a spatial information workflow engine, describe its algorithm relatively, and make foundation to collaborative spatial information service.
3) Introduce ontology-based method into the collaborative environment to manage system license, put forward the spatial information authorization mechanism based on ontology, and then give the implementation model.
4) Discuss the related integration issues about spatial information services and business model and design a method to establish spatial information business end quickly. On the base of this, put forward a service-oriented business model and implement the quick establishment of GIS Web business end under some special environment.
5) Point out that the spatial information services collaboration is a systematic project, discuss how to introduce Web technology into the spatial information service applications, study the architecture of Web-based collaborative spatial information services, arid then put forward the corresponding platform framework so as to implement a web collaboration system prototype.
引文
[1]Mcdonnell R, Kemp K. International GIS dictionary[M]. Wiley,1996.
[2]陈述彭,鲁学军,周成虎.地理信息系统导论[M].科学出版社,1999.
[3]吴信才.地理信息系统原理与方法[M].电子工业出版社,2002.
[4]李德仁,朱欣焰,龚健雅.从数字地图到空间信息网格——空间信息多级网格理论思考[J].武汉大学学报(信息科学版).2003(06)：642-650.
[5]袁延良,任波,陈汭新,等.“数字城市”地理空间数据框架建设研究[J].计算机技术与发展.2007(02)：50-52.
[6]吴素芝,张珊珊,张荣.智能交通地理空间数据框架及建设方法研究[J].城市勘测.2008(04)：27-30.
[7]CODATA概况.http://www.codata.cn/.2009.
[8]李德仁,胡庆武.基于可量测实景影像的空间信息服务[J].武汉大学学报：信息科学版.2007,32(05)：377-380.
[9]张庆合.基于SIG的地质图空间数据共享与服务[J].勘探地球物理进展.2006,29(001)：56-61.
[10]钟耳顺,刘利.我国地理信息产业现状分析[J].测绘科学.2008,33(001)：17-20.
[11]吴焕萍.地理信息Web服务集成关键技术研究[学位论文].北京大学,2005.
[12]陈荦.分布式地理空间数据服务集成技术研究[学位论文].国防科学技术大学,2006.
[13]贾文珏.分布式GIS服务链集成关键技术[学位论文].武汉大学,2005.
[14]唐宇,陈荦,何凯涛,等.空间信息栅格SIG框架体系与关键技术研究[J].遥感学报.2004,8(005)：425-433.
[15]Waters B. Software as a service:A look at the customer benefits[J]. Journal of Digital Asset Management.2005,1(1):32-39.
[16]Zeng L, Benatallah B, Dumas M, et al. Quality driven web services composition[C].2003
[17]姚志林.基于本体的工作流为中心协同工作关键技术的研究[学位论文].吉林大学,2008.
[18]倪强,朱光喜.计算机支持下的协同工作的研究现状综述[J].计算机工程与应用.2000,36(004)：5-7.
[19]史美林,向勇,杨光信.计算机支持的协同工作理论与应用[M].电子工业出版社,2000.
[20]Li W, Wang W, Marsic I. Collaboration transparency in the DISCIPLE framework[C].Proceedings of the international ACM SIGGROUP conference on Supporting group work. Phoenix, Arizona, United States.1999
[21]Chabert A, Grossman E, Jackson L S, et al. Java object-sharing in Habanero[J]. Communications of the ACM.1998,41(6):69-76.
[22]Sycara K, Paolucci M, Van V M, et al. The retsina mas infrastructure[J]. Autonomous agents and multi-agent systems.2003,7(1):29-48.
[23]Anupam V, Bajaj C L. Collaborative multimedia scientific design in SHASTRA[C].Proceedings of the first ACM international conference on Multimedia. Anaheim, California, United States.1993
[24]Mitre J, Navarro-Moldes L. P2p architecture for scientific collaboration[J].13th IEEE International Workshops on Enabling Technologies:Infrastructure for Collaborative Enterprises, 2004. WET ICE 2004.2004:95-100.
[25]Krebs A M, Dorohonceanu B, Marsic I. Supporting Collaboration in Heterogeneous Environments[J]. Journal of Management Information Systems.2004,20(4):199-228.
[26]Belotti R, Decurtins C, Grossniklaus M, et al. Modelling context for information environments[M]. Springer,2004.
[27]刘均,李人厚,郑庆华.一种面向个性化协同学习的任务生成方法[J].Journal of Software. 2006,17(1):79-85.
[28]贾文珏.分布式GIS服务链集成关键技术[学位论文].武汉大学,2006.
[29]Allen R. Workflow:an introduction[M].WFMC,2008:15-38.
[30]罗海滨,范玉顺.工作流技术综述[J].软件学报.2000,11(7)：899-907.
[31]陈琨,林志航,等.基于设计协作环的产品概念设计工作流模型[J].机床与液压.2003(1)：58-60.
[32]陈琨,林志航,杨明顺.基于设计协作环的产品方案设计工作流模型及实现[J].机械工程学报.2003,39(12)：118-122.
[33]杜栓柱,谭建荣,陆国栋.支持DFMC的同步协作工作流模型研究[J].计算机辅助设计与图形学学报.2003,15(9)：1153-1159.
[34]马华,张红宇.一个支持服务协作的工作流管理系统[J].计算机系统应用.2007(06)：5-8.
[35]韩宇星,马冬梅,李林.工作流技术与Web服务[J].河南教育学院学报：自然科学版.2007,16(4)：40-44.
[36]朱韶平.基于访问代理的工作流系统协作接口模型的设计与实现[J].科学技术与工程.2008,8(4)：953-957.
[37]许甸.基于Web服务的跨组织工作流协作研究[学位论文].中南大学,2007.
[38]陶坤旺.工作流技术在政府地理信息系统中的应用研究[学位论文].中国测绘科学研究院,2006.
[39]廖振修.工作流与GIS技术相融合的电子政务实现方法研究[学位论文].合肥工业大学,2005.
[40]孙亚琴,闾国年,龚敏霞,等.国土资源电子政务中GIS与工作流的集成应用研究[J].测绘科学.2008,33(3)：189-191.
[41]李忠,宁书年.基于WebGIS的电子公文流程研究与设计[J].计算机工程与应用.2006,42(35)：191-193.
[42]孙均政.基于Web服务的工作流技术研究[学位论文].哈尔滨工程大学,2005.
[43]黄世秀,高飞,胡小华.基于工作流的电子政务系统[J].合肥工业大学学报：自然科学版.2004,27(2)：140-143.
[44]陈占龙.基于工作流的国土资源电子政务系统研究[学位论文].昆明理工大学,2006.
[45]龚睿,杨贯中,陈莉.面向Web服务的电子政务工作流模型研究[J].计算机工程与应用.2005,41(12)：229-232.
[46]龚睿.面向Web服务的工作流模型在政务协同服务中的应用[学位论文].湖南大学,2005.
[47]沈熙玲.面向GIS的工作流技术体系设计与工作流引擎实现方法研究[学位论文].浙江大学,2007.
[48]陈宁.面向GIS的工作流技术研究[学位论文].江苏大学,2007.
[49]刘麒贇.基于工作流与GIS技术的机场土地规划及利用系统的设计与实现[学位论文].北京交通大学,2008.
[50]卓嵩.基于工作流和GIS技术的企业办公自动化系统的设计与实现[学位论文].西南交通大学,2008.
[51]刘晓.GIS与分布式工作流管理系统的集成研究[学位论文].合肥工业大学,2007.
[52]罗玉军.基于工作流技术和GIS的图文一体化信息系统的研究[学位论文].成都理工大学,2002.
[53]王焕彬,夏靖波.网格工作流在军事信息网格中的应用研究[J].自动化仪表.2008,29(001)：43-46.
[54]Di L. A framework for developing Web-service-based intelligent geospatial knowledge systems[J]. Geographic Information Sciences.2005,11(1):24.
[55]崔铁军,郭黎,张斌,等.空间信息网络服务中的数据安全策略研究[J].地理信息世界.2009,7(2)：10-14.
[56]Damiani M L, Bertino E, Catania B, et al. GEO-RBAC:A spatially aware RBAC[J]. ACM Transactions on Information and System Security (TISSEC).2007,10(1):2-40.
[57]Pan Y, Sheng Y, Zhou J. Role-based access control model for GIS[C].Society of Photo-Optical Instrumentation Engineers (SPIE) Conference Series.2007
[58]Hansen F, Oleshchuk V. SRBAC:A spatial role-based access control model for mobile systems[C].the 7th Nordic Workshop on Secure IT Systems.2003
[59]Chandran S M, Joshi J. LoT-RBAC:A location and time-based RBAC model[J]. Lecture notes in computer science.2005,3806:361.
[60]袁煜锋,吴健平.角色权限管理在WebGIS系统中的应用[J].计算机安全.2008(012)：39-42.
[61]Ferraiolo D F, Sandhu R, Gavrila S, et al. Proposed NIST standard for role-based access control[J]. ACM Transactions on Information and System Security (TISSEC).2001,4(3):224-274.
[62]王小明,赵宗涛,郝克刚.工作流系统带权角色与周期时间访问控制模型[J].软件学报.2003,14(011)：1841-1848.
[63]Joshi J, Bertino E, Latif U, et al. A generalized temporal role-based access control model[J]. IEEE Transactions on Knowledge and Data Engineering.2005,17(1):4-23.
[64]Sun Y, Meng X, Liu S, et al. Flexible workflow incorporated with RBAC[J].Lecture Notes in Computer Science.2006,3865:525-531.
[65]Kong W, Ogata K, Futatsugi K. Specification and verification of workflows with RBAC mechanism and SoD constraints[J]. International Journal of Software Engineering and Knowledge Engineering.2007,17(1):3-32.
[66]Dury A, Boroday S, Petrenko A, et al. Formal Verification of Business Workflows and Role Based Access Control Systems[Z].2007201-210.
[67]Bertino E, Ferrari E, Atluri V. The specification and enforcement of authorization constraints in workflow management systems[J]. ACM Transactions on Information and System Security (TISSEC).1999,2(1):65-104.
[68]张冬雯,裴兴,仇计清.带时间约束的基于任务角色委托模型[J].计算机应用研究.2009,26(10)：3906-3910.
[69]董光宇,卿斯汉,等.带时间特性的角色授权约束[J].软件学报.2002,13(8)：1521-1527.
[70]Ahn G J, Sandhu R. Role-based authorization constraints specification[J]. ACM Transactions on Information and System Security (TISSEC).2000,3(4):207-226.
[71]Bertino E, Bonatti P A, Ferrari E. TRBAC:A temporal role-based access control model[J]. ACM Transactions on Information and System Security (TISSEC).2001,4(3):191-233.
[72]Venter K, Olivier M. The delegation authorization model:A model for the dynamic delegation of authorization rights in a secure workflow management system[J]. Proceedings of Information Security South Africa (ISSA'02).2002.
[73]Barka E,Sandhu R. Role-based delegation model/hierarchical roles (RBDM1)[C]. the 23rd National Information Systems Security Conference. Baltimore, MD.2004
[74]张宏,贺也平,石志国.基于周期时间限制的自主访问控制委托模型[J].计算机学报.2006,29(8)：1427-1437.
[75]Wainer J, Kumar A, Barthelmess P. DW-RBAC:A formal security model of delegation and revocation in workflow systems[J]. Information Systems.2007,32(3):365-384.
[76]焦振海,丁二玉,骆斌.工作流管理中基于规则策略的访问控制[J].计算机应用研究.2008,25(3)：885-887.
[77]张志勇,黄涛.信任管理中基于角色的委托授权研究进展[J].计算机应用研究.2008,25(6)：1601-1605.
[78]彭轮蒋玉明杨建华符颖.工作流中基于RBAC的SoD安全分析与应用[J].微计算机信息.2009(30)：62-64.
[79]刘庆松,赵清理,贾保先.电子政务环境下基于PMI的工作流管理系统安全模型和授权策略研究[J].聊城大学学报：自然科学版.2009,22(2)：89-92.
[80]诸云强,刘润达,冯敏,等.分布式地球系统科学数据共享平台研究[J].计算机工程与应用.2009,45(1)：245-248.
[81]周成虎,欧阳,李增元.我国遥感数据的集成与共享研究[J].中国工程科学.2008,10(006)：
[82]吴建国.WEB SERVICES构架下的地质信息集成平台研究[学位论文].中国矿业大学,2008.
[83]李学东.基于WEB的地学数据集成与发布技术研究[学位论文].中国地质大学(北京),2009.
[84]李德仁,黄俊华,邵振峰.面向服务的数字城市共享平台框架的设计与实现[J].武汉大学学报：信息科学版.2008,33(009)：881-885.
[85]黎阳,尹球,胡勇.遥感信息与知识共享平台的研究[J].计算机工程.2009,35(15)：243-246.
[86]卢战伟,赵彦庆,陈荣国,等.基于SOA的空间信息资源整合与服务模式探讨[J].计算机与数字工程.2009,37(9)：125-127.
[87]钱大君,吴健平,余柏蒗,等.上海市资源与环境数据共享平台的实现[J].计算机工程.2008,34(010)：283-284.
[88]李姗姗.空间信息分布式协同高性能计算框架的初步研究[学位论文].中国地质大学(北京)，2009.
[89]张成成,李钢,李成名,等.测绘科学数据共享服务建设应用研究[J].测绘与空间地理信息.2008,31(002)：91-93.
[90]梁娟珠陈崇成.地理信息Web服务的研究进展综述[J].微计算机应用.2008,29(05)：19-26.
[91]Heineman G T, Councill W T. Component-based software engineering:putting the pieces together[M]. Addison-Wesley USA,2001.
[92]孙昌爱,金茂忠,刘超.软件体系结构研究综述[J].软件学报.2002,13(007)：1228-1237.
[93]Marchese M. Service oriented architectures for supporting environments in eGovernment applications[J]. Applications and the Internet Workshops, IEEE.2003.
[94]Brown A, Johnston S, Kelly K. Using service-oriented architecture and component-based development to build web service applications[J].interactions.,1:2.
[95]迟文学.面向服务的搭建式软件开发技术研究[学位论文].中国地质大学(北京),2008.
[96]Zimmermann O, Krogdahl P, Gee C, et al. Elements of Service-Oriented Analysis and Design. An interdisciplinary modeling approach for SOA projects.2004[J]. UR L http://www.ibm. com/developerworks/webservices/library/ws-soadl/.-last visited.2004,20.
[97]Newcomer E, Lomow G. Understanding SOA with Web Services (Independent Technology Guides)[M]. Addison-Wesley Professional,2004.
[98]Dardailler D. W3C-Web Open Standards, SOA. http://www.w3.org/2008/11/dd-soa.html. 2010-01-01,2008
[99]Portier Bertrand. SOA术语概述.http://www.ibm.com/developerworks/cn/webservices/ws-soa-terml/index.html.2010-1-1.
[100]吴功和.分布式地理信息服务研究与实践[学位论文].解放军信息工程大学,2006.
[101]柴晓路.架构Web Services:什么是Web服务?.http://www.ibm.com/developerworks/cn/.
[102]Curbera F, Duftler M, Khalaf R, et al. Unraveling the Web services web:an introduction to SOAP, WSDL, and UDDI[J]. IEEE Internet computing.2002,6(2):86-93.
[103]韩燕波,喻坚.面向服务的计算--原理和应用[M].北京：清华大学出版社,2006.
[104]柴晓路.Web服务架构与开放互操作技术[M].清华大学出版社,2002.
[105]岳昆,王晓玲,周傲英.Web服务核心支撑技术：研究综述[J].软件学报.2004,15(003)：428-442.
[106]杨超,郭瑞强,乐嘉锦.基于Web Services的行业虚拟企业应用集成[J].东华大学学报：自然科学版.2005,31(5)：64-68.
[107]Oreilly T. What is Web 2.0:Design patterns and business models for the next generation of software[J]. communications & strategies.2007,65(1):19-37.
[108]Hinchcliffe D. The SOA world begins considering Web-Oriented Architecture (WOA) in earnest, http://hinchcliffe.org/default.aspx.2010/1/14,2009
[109]张霞.地理信息服务组合与空间分析服务研究[学位论文].武汉大学,2006.
[110]Shekhar S, Chawla S. Spatial databases:a tour[M]. Prentice Hall,2003.
[111]贾文珏,李斌,龚健雅.基于工作流技术的动态GIS服务链研究[J].武汉大学学报：信息科学版.2005,30(11)：982-985.
[112]Tait M G. Implementing geoportals:applications of distributed GIS[J]. Computers, Environment and Urban Systems.2005,29(1):33-47.
[113]Wrazien D, Young M. Overview of ArcGIS Solutions in Service-Oriented Architectures[J]. ESRI Developer Summit.2006.
[114]Lu X. An Investigation on Service-Oriented" Architecture for Constructing Distributed Web GIS Application[C].2005
[115]Tsou M H, Buttenfield B P. A dynamic architecture for distributing geographic information services[J]. Transactions in GIS.2002,6(4):355-381.
[116]詹骞.基于Ajax/REST的GIS WEB服务研究与实现[学位论文].中国地质大学(北京),2008.
[117]Ogc. Geography Markup Language.http://www.opengeospatial.org/standards/gml.2010,2010
[118]兰小机,韩立钦.基于GML空间数据库的开放式WebGIS关键技术研究[J].大地测量与地球动力学.2009,29(4)：120-123.
[119]Tsur S, Abiteboul S, Agrawal R, et al. Are Web services the next revolution in e-commerce?(Panel)[C].Proceedings of the 27th International Conference on Very Large Data Bases. 2001
[120]Milanovic N, Malek M. Current solutions for web service composition[J]. IEEE Internet Computing.2004,8(6):51-59.
[121]刘书雷.基于工作流的空间信息服务聚合技术研究[学位论文].国防科学技术大学,2007.
[122]张建兵.基于网格的空间信息服务关键技术研究[学位论文].2006.
[123]王家耀,孙庆辉,吴明光,等.面向智能空间信息服务的网格GIS节点构建[J].武汉大学学报：信息科学版.2009,34(001)：1-6.
[124]李德仁.论广义空间信息网格和狭义空间信息网格[J].遥感学报.2005,9(005)：513-520.
[125]韦亚星.基于数据网格的地理空间信息协作共享系统研究[学位论文].中国科学技术大学,2008.
[126]骆剑承,周成虎,蔡少华,等.基于中间件技术的网格GIS体系结构[J].地球信息科学.2002,4(003)：17-25.
[127]沈占锋,骆剑承,蔡少华,等.网格GIS的应用架构及关键技术[J].地球信息科学.2003,5(4)：57-62.
[128]任建武,闾国年,王桥.多层体系GIS与模型集成研究[J].测绘学报.2003,32(002)：178-182.
[129]胡茂胜.基于数据中心模式的分布式异构空间数据无缝集成技术研究[学位论文].中国地质大学,2009.
[130]张成,吴信才,罗津,等.基于构件库/工作流的可视化软件开发[J].计算机工程与应用.2008,44(10)：82-87.
[131]龚震宇.分布式空间信息服务开放互操作模型及其应用研究[学位论文].铁道部科学研究院,2006.
[132]高勇,刘宇,王永乾.基于OpenGIS的空间信息工作流管理系统框架研究[J].地理与地理信息科学.2002(04)：28-32.
[133]呙维.空间信息工作流若干关键技术研究[学位论文].武汉大学,2005.
[134]Weske M. Business Process Management:Concepts, Languages, Architectures[M]. Springer-Verlag Berlin Heidelberg,2007.
[135]范玉顺,林慧苹,罗海滨,等.工作流管理技术基础[M].清华大学出版社,2001.
[136]范玉顺,吴澄.一种提高系统柔性的工作流建模方法研究[J].软件学报.2002,13(4)：833-838.
[137]蒋建民.基于组件和工作流技术的系统模型[J].计算机工程与应用.2002,38(15)：63-64.
[138]孙瑞志,史美林.支持工作流动态变化的过程元模型[J].软件学报.2003,14(1):62-67.
[139]Weerawarana S, Curbera F, Leymann F, et al. Web Services Platform Architecture:SOAP, WSDL, WS-Policy, WS-Addressing, WS-BPEL, WS-Reliable Messaging and More[M]. Prentice Hall PTR Upper Saddle River, NJ, USA,2005.
[140]沈海波.Web服务中的关键安全技术研究[学位论文].华中科技大学,2009.
[141]任传伦.分布环境下身份认证和授权管理的研究[学位论文].北京邮电大学,2007.
[142]王治纲.分布式环境中基于本体的RBAC策略研究[学位论文].华中科技大学,2006.
[143]Sandhu R. Engineering authority and trust in cyberspace:the OM-AM and RBAC way [C].Proceedings of the fifth ACM workshop on Role-based access control. Berlin, Germany.2000
[144]Ferraiolo D. Role Based Access Control (RBAC) and Role Based Security. http://csrc.nist.gov/groups/SNS/rbac/.2010/1/10,2010
[145]杨秋伟.分布式环境下授权管理模型的信任机制研究[学位论文].华中科技大学,2007.
[146]吕宜洪,宋瀚涛,龚圆明.大型应用系统用户权限构成分析及访问控制策略研究[J].小型微型计算机系统.2004,25(2)：195-198.
[147]苏里,朱庆伟,陈宜金,等.基于地理本体的空间数据库概念建模[J].计算机工程.2007,33(12)：23-26.
[148]Gruber T R. Toward principles for the design of ontologies used for knowledge sharing[J]. International Journal of Human Computer Studies.1995,43(5):907-928.
[149]安杨,赵波.基于本体的空间信息集成[J].华中科技大学学报：自然科学版.2006(z1)：90-93.
[150]姚志林.基于本体的工作流为中心协同工作关键技术的研究[学位论文].吉林大学,2008.
[151]林金娇.业务规则与企业协作系统适应性的研究[学位论文].2008.
[152]刘苇,刘勇.基于Spring的业务规则引擎[J].计算机工程.2008,34(023)：56-58.
[153]Ross R. G.,韩柯.业务规则方法原理[M].北京：机械工业出版社,2004.
[154]Grigori D, Casati F, Castellanos M, et al. Business process intelligence[J]. Computers in Industry.2004,53(3):321-343.
[155]胡春华,吴敏,刘国平,等.服务工作流中基于用户需求的调度模型及算法研究[J].小型微型计算机系统.2007,28(6)：1008-1014.
[156]丁一鸣,孙瑞志.基于遗传退火算法的网格工作流调度研究[J].计算机应用.2007,27(S1)：89-91.
[157]Yong W, Chun-Ming H, Du Zong-Xia. QoS-Awared Grid Workflow Schedule[J]. Journal of Software.2006,17(11):2341-2351.
[158]李慧芳,范玉顺.时间约束工作流模型的可调度性分析算法[J].计算机集成制造系统.2002,8(7)：527-532.
[159]邬伦,承继成,史文中.地理信息系统数据的不确定性问题[J].测绘科学.2006,31(5)：40-51.
[160]Wang L X, Mendel J M. Fuzzy basis functions, universal approximation, and orthogonalleast-squares learning[J]. IEEE Transactions on Neural Networks.1992,3(5):807-814.
[161]Jang J. ANFIS:Adaptive-network-based fuzzy inference system[J]. IEEE Transactions on Systems, Man and Cybernetics.1993,23(3):665-685.
[162]刘怡,张子刚.基于模糊层次分析法的工作流任务排序研究[J].计算机集成制造系统.2006,12(5)：688-691.
[163]Yi D, Jian C. Fuzzy control-based heuristic algorithm for load balancing in workflow engine[J]. Journal on Communications.2006(11):84-89.
[164]庞辉,方宗德.基于模糊时间Petri网的协同工作流模型研究[J].系统仿真学报.2008,20(6)：1567-1569.
[165]王生发,潘敏,郭剑峰.基于模糊决策的工作流互操作研究[J].微电子学与计算机.2008,25(7)：100-102.
[166]王志武,贾志娟,胡明生,等.基于网格工作流的决策资源协同调度模型[J].微计算机信息.2007,23(33)：177-179.
[167]Tsourveloudis N C, Dretoulakis E, Ioannidis S. Fuzzy work-in-process inventory control of unreliable manufacturing systems[J]. Information Sciences.2000,127(1-2):69-83.
[168]Schockaert S, De C M, Kerre E E. Spatial reasoning in a fuzzy region connection calculus[J]. Artificial Intelligence.2009,173(2):258-298.
[169]Dutta S. Approximate spatial reasoning:Integrating qualitative and quantitative constraints[J]. International Journal of Approximate Reasoning.1991,5(3):307-330.
[170]叶娜,李健.工作流引擎推进过程中m选n问题的研究[J].计算机应用研究.2009,26(11)：4098-4100.
[171]敖丽敏,祝晓东,周炜.基于IoC模式的工作流与应用系统的集成[J].计算机工程.2009,35(18)：69-71.
[172]张怡阳.基于依赖注入的移动终端应用开发[J].计算机应用.2009,29(S1)：282-284.
[173]焦丹勋,李春平.面向金税工程的依赖注入模式研究与应用[J].计算机工程与设计.2007,28(01)：182-184.
[174]Elrad T, Filman R E, Bader A. Aspect-oriented programming:Introduction [J]. Commun. ACM. 2001,44(10):29-32.
[175]Filman R, Elrad T, Clarke S. Aspect-oriented software development[M]. New York, NY, USA: Addison-Wesley Professional,2004.
[176]Atasu K, Pozzi L, Ienne P. Automatic application-specific instruction-set extensions under microarchitectural constraints [C].Proceedings of the 40th annual Design Automation Conference. Anaheim, CA, USA.2003
[177]张天戈.基于模型驱动的面向对象应用程序框架的关键技术研究[学位论文].复旦大学,2009.
[178]Fayad M, Schmidt D C, Johnson R E. Building application frameworks:object-oriented foundations of framework design[M]. Wiley Chichester,1999.
[179]Cardone R, Soroker D, Tiwari A. Using XForms to simplify Web programming[C].Proceedings of the 14th international conference on World Wide Web. Chiba, Japan.2005
[180]Ding X, Li X. Research of Model-Driven Interactive Automatic/Semi-automatic Form Building[C].Proceedings of the 2007 conference on Human interface. Beijing, China.2007
[181]Mamrak S A, Pole S.Automatic form generation[J]. Software:Practice and Experience.2002, 32(11):1051-1063.
[182]RIA. http://baike.baidu.com/view/706341.html.2009
[183].Moroney Laurence. Silverlight入门.http://msdn.microsoft.com/zh-cn/library/bb190632.aspx. 2010.
[184]Wikipedia. HTML 5. http://zh.wikipedia.org/wiki/HTML_5.2010-1-1,2010
[2]陈述彭,鲁学军,周成虎.地理信息系统导论[M].科学出版社,1999.
[3]吴信才.地理信息系统原理与方法[M].电子工业出版社,2002.
[4]李德仁,朱欣焰,龚健雅.从数字地图到空间信息网格——空间信息多级网格理论思考[J].武汉大学学报(信息科学版).2003(06)：642-650.
[5]袁延良,任波,陈汭新,等.“数字城市”地理空间数据框架建设研究[J].计算机技术与发展.2007(02)：50-52.
[6]吴素芝,张珊珊,张荣.智能交通地理空间数据框架及建设方法研究[J].城市勘测.2008(04)：27-30.
[7]CODATA概况.http://www.codata.cn/.2009.
[8]李德仁,胡庆武.基于可量测实景影像的空间信息服务[J].武汉大学学报：信息科学版.2007,32(05)：377-380.
[9]张庆合.基于SIG的地质图空间数据共享与服务[J].勘探地球物理进展.2006,29(001)：56-61.
[10]钟耳顺,刘利.我国地理信息产业现状分析[J].测绘科学.2008,33(001)：17-20.
[11]吴焕萍.地理信息Web服务集成关键技术研究[学位论文].北京大学,2005.
[12]陈荦.分布式地理空间数据服务集成技术研究[学位论文].国防科学技术大学,2006.
[13]贾文珏.分布式GIS服务链集成关键技术[学位论文].武汉大学,2005.
[14]唐宇,陈荦,何凯涛,等.空间信息栅格SIG框架体系与关键技术研究[J].遥感学报.2004,8(005)：425-433.
[15]Waters B. Software as a service:A look at the customer benefits[J]. Journal of Digital Asset Management.2005,1(1):32-39.
[16]Zeng L, Benatallah B, Dumas M, et al. Quality driven web services composition[C].2003
[17]姚志林.基于本体的工作流为中心协同工作关键技术的研究[学位论文].吉林大学,2008.
[18]倪强,朱光喜.计算机支持下的协同工作的研究现状综述[J].计算机工程与应用.2000,36(004)：5-7.
[19]史美林,向勇,杨光信.计算机支持的协同工作理论与应用[M].电子工业出版社,2000.
[20]Li W, Wang W, Marsic I. Collaboration transparency in the DISCIPLE framework[C].Proceedings of the international ACM SIGGROUP conference on Supporting group work. Phoenix, Arizona, United States.1999
[21]Chabert A, Grossman E, Jackson L S, et al. Java object-sharing in Habanero[J]. Communications of the ACM.1998,41(6):69-76.
[22]Sycara K, Paolucci M, Van V M, et al. The retsina mas infrastructure[J]. Autonomous agents and multi-agent systems.2003,7(1):29-48.
[23]Anupam V, Bajaj C L. Collaborative multimedia scientific design in SHASTRA[C].Proceedings of the first ACM international conference on Multimedia. Anaheim, California, United States.1993
[24]Mitre J, Navarro-Moldes L. P2p architecture for scientific collaboration[J].13th IEEE International Workshops on Enabling Technologies:Infrastructure for Collaborative Enterprises, 2004. WET ICE 2004.2004:95-100.
[25]Krebs A M, Dorohonceanu B, Marsic I. Supporting Collaboration in Heterogeneous Environments[J]. Journal of Management Information Systems.2004,20(4):199-228.
[26]Belotti R, Decurtins C, Grossniklaus M, et al. Modelling context for information environments[M]. Springer,2004.
[27]刘均,李人厚,郑庆华.一种面向个性化协同学习的任务生成方法[J].Journal of Software. 2006,17(1):79-85.
[28]贾文珏.分布式GIS服务链集成关键技术[学位论文].武汉大学,2006.
[29]Allen R. Workflow:an introduction[M].WFMC,2008:15-38.
[30]罗海滨,范玉顺.工作流技术综述[J].软件学报.2000,11(7)：899-907.
[31]陈琨,林志航,等.基于设计协作环的产品概念设计工作流模型[J].机床与液压.2003(1)：58-60.
[32]陈琨,林志航,杨明顺.基于设计协作环的产品方案设计工作流模型及实现[J].机械工程学报.2003,39(12)：118-122.
[33]杜栓柱,谭建荣,陆国栋.支持DFMC的同步协作工作流模型研究[J].计算机辅助设计与图形学学报.2003,15(9)：1153-1159.
[34]马华,张红宇.一个支持服务协作的工作流管理系统[J].计算机系统应用.2007(06)：5-8.
[35]韩宇星,马冬梅,李林.工作流技术与Web服务[J].河南教育学院学报：自然科学版.2007,16(4)：40-44.
[36]朱韶平.基于访问代理的工作流系统协作接口模型的设计与实现[J].科学技术与工程.2008,8(4)：953-957.
[37]许甸.基于Web服务的跨组织工作流协作研究[学位论文].中南大学,2007.
[38]陶坤旺.工作流技术在政府地理信息系统中的应用研究[学位论文].中国测绘科学研究院,2006.
[39]廖振修.工作流与GIS技术相融合的电子政务实现方法研究[学位论文].合肥工业大学,2005.
[40]孙亚琴,闾国年,龚敏霞,等.国土资源电子政务中GIS与工作流的集成应用研究[J].测绘科学.2008,33(3)：189-191.
[41]李忠,宁书年.基于WebGIS的电子公文流程研究与设计[J].计算机工程与应用.2006,42(35)：191-193.
[42]孙均政.基于Web服务的工作流技术研究[学位论文].哈尔滨工程大学,2005.
[43]黄世秀,高飞,胡小华.基于工作流的电子政务系统[J].合肥工业大学学报：自然科学版.2004,27(2)：140-143.
[44]陈占龙.基于工作流的国土资源电子政务系统研究[学位论文].昆明理工大学,2006.
[45]龚睿,杨贯中,陈莉.面向Web服务的电子政务工作流模型研究[J].计算机工程与应用.2005,41(12)：229-232.
[46]龚睿.面向Web服务的工作流模型在政务协同服务中的应用[学位论文].湖南大学,2005.
[47]沈熙玲.面向GIS的工作流技术体系设计与工作流引擎实现方法研究[学位论文].浙江大学,2007.
[48]陈宁.面向GIS的工作流技术研究[学位论文].江苏大学,2007.
[49]刘麒贇.基于工作流与GIS技术的机场土地规划及利用系统的设计与实现[学位论文].北京交通大学,2008.
[50]卓嵩.基于工作流和GIS技术的企业办公自动化系统的设计与实现[学位论文].西南交通大学,2008.
[51]刘晓.GIS与分布式工作流管理系统的集成研究[学位论文].合肥工业大学,2007.
[52]罗玉军.基于工作流技术和GIS的图文一体化信息系统的研究[学位论文].成都理工大学,2002.
[53]王焕彬,夏靖波.网格工作流在军事信息网格中的应用研究[J].自动化仪表.2008,29(001)：43-46.
[54]Di L. A framework for developing Web-service-based intelligent geospatial knowledge systems[J]. Geographic Information Sciences.2005,11(1):24.
[55]崔铁军,郭黎,张斌,等.空间信息网络服务中的数据安全策略研究[J].地理信息世界.2009,7(2)：10-14.
[56]Damiani M L, Bertino E, Catania B, et al. GEO-RBAC:A spatially aware RBAC[J]. ACM Transactions on Information and System Security (TISSEC).2007,10(1):2-40.
[57]Pan Y, Sheng Y, Zhou J. Role-based access control model for GIS[C].Society of Photo-Optical Instrumentation Engineers (SPIE) Conference Series.2007
[58]Hansen F, Oleshchuk V. SRBAC:A spatial role-based access control model for mobile systems[C].the 7th Nordic Workshop on Secure IT Systems.2003
[59]Chandran S M, Joshi J. LoT-RBAC:A location and time-based RBAC model[J]. Lecture notes in computer science.2005,3806:361.
[60]袁煜锋,吴健平.角色权限管理在WebGIS系统中的应用[J].计算机安全.2008(012)：39-42.
[61]Ferraiolo D F, Sandhu R, Gavrila S, et al. Proposed NIST standard for role-based access control[J]. ACM Transactions on Information and System Security (TISSEC).2001,4(3):224-274.
[62]王小明,赵宗涛,郝克刚.工作流系统带权角色与周期时间访问控制模型[J].软件学报.2003,14(011)：1841-1848.
[63]Joshi J, Bertino E, Latif U, et al. A generalized temporal role-based access control model[J]. IEEE Transactions on Knowledge and Data Engineering.2005,17(1):4-23.
[64]Sun Y, Meng X, Liu S, et al. Flexible workflow incorporated with RBAC[J].Lecture Notes in Computer Science.2006,3865:525-531.
[65]Kong W, Ogata K, Futatsugi K. Specification and verification of workflows with RBAC mechanism and SoD constraints[J]. International Journal of Software Engineering and Knowledge Engineering.2007,17(1):3-32.
[66]Dury A, Boroday S, Petrenko A, et al. Formal Verification of Business Workflows and Role Based Access Control Systems[Z].2007201-210.
[67]Bertino E, Ferrari E, Atluri V. The specification and enforcement of authorization constraints in workflow management systems[J]. ACM Transactions on Information and System Security (TISSEC).1999,2(1):65-104.
[68]张冬雯,裴兴,仇计清.带时间约束的基于任务角色委托模型[J].计算机应用研究.2009,26(10)：3906-3910.
[69]董光宇,卿斯汉,等.带时间特性的角色授权约束[J].软件学报.2002,13(8)：1521-1527.
[70]Ahn G J, Sandhu R. Role-based authorization constraints specification[J]. ACM Transactions on Information and System Security (TISSEC).2000,3(4):207-226.
[71]Bertino E, Bonatti P A, Ferrari E. TRBAC:A temporal role-based access control model[J]. ACM Transactions on Information and System Security (TISSEC).2001,4(3):191-233.
[72]Venter K, Olivier M. The delegation authorization model:A model for the dynamic delegation of authorization rights in a secure workflow management system[J]. Proceedings of Information Security South Africa (ISSA'02).2002.
[73]Barka E,Sandhu R. Role-based delegation model/hierarchical roles (RBDM1)[C]. the 23rd National Information Systems Security Conference. Baltimore, MD.2004
[74]张宏,贺也平,石志国.基于周期时间限制的自主访问控制委托模型[J].计算机学报.2006,29(8)：1427-1437.
[75]Wainer J, Kumar A, Barthelmess P. DW-RBAC:A formal security model of delegation and revocation in workflow systems[J]. Information Systems.2007,32(3):365-384.
[76]焦振海,丁二玉,骆斌.工作流管理中基于规则策略的访问控制[J].计算机应用研究.2008,25(3)：885-887.
[77]张志勇,黄涛.信任管理中基于角色的委托授权研究进展[J].计算机应用研究.2008,25(6)：1601-1605.
[78]彭轮蒋玉明杨建华符颖.工作流中基于RBAC的SoD安全分析与应用[J].微计算机信息.2009(30)：62-64.
[79]刘庆松,赵清理,贾保先.电子政务环境下基于PMI的工作流管理系统安全模型和授权策略研究[J].聊城大学学报：自然科学版.2009,22(2)：89-92.
[80]诸云强,刘润达,冯敏,等.分布式地球系统科学数据共享平台研究[J].计算机工程与应用.2009,45(1)：245-248.
[81]周成虎,欧阳,李增元.我国遥感数据的集成与共享研究[J].中国工程科学.2008,10(006)：
[82]吴建国.WEB SERVICES构架下的地质信息集成平台研究[学位论文].中国矿业大学,2008.
[83]李学东.基于WEB的地学数据集成与发布技术研究[学位论文].中国地质大学(北京),2009.
[84]李德仁,黄俊华,邵振峰.面向服务的数字城市共享平台框架的设计与实现[J].武汉大学学报：信息科学版.2008,33(009)：881-885.
[85]黎阳,尹球,胡勇.遥感信息与知识共享平台的研究[J].计算机工程.2009,35(15)：243-246.
[86]卢战伟,赵彦庆,陈荣国,等.基于SOA的空间信息资源整合与服务模式探讨[J].计算机与数字工程.2009,37(9)：125-127.
[87]钱大君,吴健平,余柏蒗,等.上海市资源与环境数据共享平台的实现[J].计算机工程.2008,34(010)：283-284.
[88]李姗姗.空间信息分布式协同高性能计算框架的初步研究[学位论文].中国地质大学(北京)，2009.
[89]张成成,李钢,李成名,等.测绘科学数据共享服务建设应用研究[J].测绘与空间地理信息.2008,31(002)：91-93.
[90]梁娟珠陈崇成.地理信息Web服务的研究进展综述[J].微计算机应用.2008,29(05)：19-26.
[91]Heineman G T, Councill W T. Component-based software engineering:putting the pieces together[M]. Addison-Wesley USA,2001.
[92]孙昌爱,金茂忠,刘超.软件体系结构研究综述[J].软件学报.2002,13(007)：1228-1237.
[93]Marchese M. Service oriented architectures for supporting environments in eGovernment applications[J]. Applications and the Internet Workshops, IEEE.2003.
[94]Brown A, Johnston S, Kelly K. Using service-oriented architecture and component-based development to build web service applications[J].interactions.,1:2.
[95]迟文学.面向服务的搭建式软件开发技术研究[学位论文].中国地质大学(北京),2008.
[96]Zimmermann O, Krogdahl P, Gee C, et al. Elements of Service-Oriented Analysis and Design. An interdisciplinary modeling approach for SOA projects.2004[J]. UR L http://www.ibm. com/developerworks/webservices/library/ws-soadl/.-last visited.2004,20.
[97]Newcomer E, Lomow G. Understanding SOA with Web Services (Independent Technology Guides)[M]. Addison-Wesley Professional,2004.
[98]Dardailler D. W3C-Web Open Standards, SOA. http://www.w3.org/2008/11/dd-soa.html. 2010-01-01,2008
[99]Portier Bertrand. SOA术语概述.http://www.ibm.com/developerworks/cn/webservices/ws-soa-terml/index.html.2010-1-1.
[100]吴功和.分布式地理信息服务研究与实践[学位论文].解放军信息工程大学,2006.
[101]柴晓路.架构Web Services:什么是Web服务?.http://www.ibm.com/developerworks/cn/.
[102]Curbera F, Duftler M, Khalaf R, et al. Unraveling the Web services web:an introduction to SOAP, WSDL, and UDDI[J]. IEEE Internet computing.2002,6(2):86-93.
[103]韩燕波,喻坚.面向服务的计算--原理和应用[M].北京：清华大学出版社,2006.
[104]柴晓路.Web服务架构与开放互操作技术[M].清华大学出版社,2002.
[105]岳昆,王晓玲,周傲英.Web服务核心支撑技术：研究综述[J].软件学报.2004,15(003)：428-442.
[106]杨超,郭瑞强,乐嘉锦.基于Web Services的行业虚拟企业应用集成[J].东华大学学报：自然科学版.2005,31(5)：64-68.
[107]Oreilly T. What is Web 2.0:Design patterns and business models for the next generation of software[J]. communications & strategies.2007,65(1):19-37.
[108]Hinchcliffe D. The SOA world begins considering Web-Oriented Architecture (WOA) in earnest, http://hinchcliffe.org/default.aspx.2010/1/14,2009
[109]张霞.地理信息服务组合与空间分析服务研究[学位论文].武汉大学,2006.
[110]Shekhar S, Chawla S. Spatial databases:a tour[M]. Prentice Hall,2003.
[111]贾文珏,李斌,龚健雅.基于工作流技术的动态GIS服务链研究[J].武汉大学学报：信息科学版.2005,30(11)：982-985.
[112]Tait M G. Implementing geoportals:applications of distributed GIS[J]. Computers, Environment and Urban Systems.2005,29(1):33-47.
[113]Wrazien D, Young M. Overview of ArcGIS Solutions in Service-Oriented Architectures[J]. ESRI Developer Summit.2006.
[114]Lu X. An Investigation on Service-Oriented" Architecture for Constructing Distributed Web GIS Application[C].2005
[115]Tsou M H, Buttenfield B P. A dynamic architecture for distributing geographic information services[J]. Transactions in GIS.2002,6(4):355-381.
[116]詹骞.基于Ajax/REST的GIS WEB服务研究与实现[学位论文].中国地质大学(北京),2008.
[117]Ogc. Geography Markup Language.http://www.opengeospatial.org/standards/gml.2010,2010
[118]兰小机,韩立钦.基于GML空间数据库的开放式WebGIS关键技术研究[J].大地测量与地球动力学.2009,29(4)：120-123.
[119]Tsur S, Abiteboul S, Agrawal R, et al. Are Web services the next revolution in e-commerce?(Panel)[C].Proceedings of the 27th International Conference on Very Large Data Bases. 2001
[120]Milanovic N, Malek M. Current solutions for web service composition[J]. IEEE Internet Computing.2004,8(6):51-59.
[121]刘书雷.基于工作流的空间信息服务聚合技术研究[学位论文].国防科学技术大学,2007.
[122]张建兵.基于网格的空间信息服务关键技术研究[学位论文].2006.
[123]王家耀,孙庆辉,吴明光,等.面向智能空间信息服务的网格GIS节点构建[J].武汉大学学报：信息科学版.2009,34(001)：1-6.
[124]李德仁.论广义空间信息网格和狭义空间信息网格[J].遥感学报.2005,9(005)：513-520.
[125]韦亚星.基于数据网格的地理空间信息协作共享系统研究[学位论文].中国科学技术大学,2008.
[126]骆剑承,周成虎,蔡少华,等.基于中间件技术的网格GIS体系结构[J].地球信息科学.2002,4(003)：17-25.
[127]沈占锋,骆剑承,蔡少华,等.网格GIS的应用架构及关键技术[J].地球信息科学.2003,5(4)：57-62.
[128]任建武,闾国年,王桥.多层体系GIS与模型集成研究[J].测绘学报.2003,32(002)：178-182.
[129]胡茂胜.基于数据中心模式的分布式异构空间数据无缝集成技术研究[学位论文].中国地质大学,2009.
[130]张成,吴信才,罗津,等.基于构件库/工作流的可视化软件开发[J].计算机工程与应用.2008,44(10)：82-87.
[131]龚震宇.分布式空间信息服务开放互操作模型及其应用研究[学位论文].铁道部科学研究院,2006.
[132]高勇,刘宇,王永乾.基于OpenGIS的空间信息工作流管理系统框架研究[J].地理与地理信息科学.2002(04)：28-32.
[133]呙维.空间信息工作流若干关键技术研究[学位论文].武汉大学,2005.
[134]Weske M. Business Process Management:Concepts, Languages, Architectures[M]. Springer-Verlag Berlin Heidelberg,2007.
[135]范玉顺,林慧苹,罗海滨,等.工作流管理技术基础[M].清华大学出版社,2001.
[136]范玉顺,吴澄.一种提高系统柔性的工作流建模方法研究[J].软件学报.2002,13(4)：833-838.
[137]蒋建民.基于组件和工作流技术的系统模型[J].计算机工程与应用.2002,38(15)：63-64.
[138]孙瑞志,史美林.支持工作流动态变化的过程元模型[J].软件学报.2003,14(1):62-67.
[139]Weerawarana S, Curbera F, Leymann F, et al. Web Services Platform Architecture:SOAP, WSDL, WS-Policy, WS-Addressing, WS-BPEL, WS-Reliable Messaging and More[M]. Prentice Hall PTR Upper Saddle River, NJ, USA,2005.
[140]沈海波.Web服务中的关键安全技术研究[学位论文].华中科技大学,2009.
[141]任传伦.分布环境下身份认证和授权管理的研究[学位论文].北京邮电大学,2007.
[142]王治纲.分布式环境中基于本体的RBAC策略研究[学位论文].华中科技大学,2006.
[143]Sandhu R. Engineering authority and trust in cyberspace:the OM-AM and RBAC way [C].Proceedings of the fifth ACM workshop on Role-based access control. Berlin, Germany.2000
[144]Ferraiolo D. Role Based Access Control (RBAC) and Role Based Security. http://csrc.nist.gov/groups/SNS/rbac/.2010/1/10,2010
[145]杨秋伟.分布式环境下授权管理模型的信任机制研究[学位论文].华中科技大学,2007.
[146]吕宜洪,宋瀚涛,龚圆明.大型应用系统用户权限构成分析及访问控制策略研究[J].小型微型计算机系统.2004,25(2)：195-198.
[147]苏里,朱庆伟,陈宜金,等.基于地理本体的空间数据库概念建模[J].计算机工程.2007,33(12)：23-26.
[148]Gruber T R. Toward principles for the design of ontologies used for knowledge sharing[J]. International Journal of Human Computer Studies.1995,43(5):907-928.
[149]安杨,赵波.基于本体的空间信息集成[J].华中科技大学学报：自然科学版.2006(z1)：90-93.
[150]姚志林.基于本体的工作流为中心协同工作关键技术的研究[学位论文].吉林大学,2008.
[151]林金娇.业务规则与企业协作系统适应性的研究[学位论文].2008.
[152]刘苇,刘勇.基于Spring的业务规则引擎[J].计算机工程.2008,34(023)：56-58.
[153]Ross R. G.,韩柯.业务规则方法原理[M].北京：机械工业出版社,2004.
[154]Grigori D, Casati F, Castellanos M, et al. Business process intelligence[J]. Computers in Industry.2004,53(3):321-343.
[155]胡春华,吴敏,刘国平,等.服务工作流中基于用户需求的调度模型及算法研究[J].小型微型计算机系统.2007,28(6)：1008-1014.
[156]丁一鸣,孙瑞志.基于遗传退火算法的网格工作流调度研究[J].计算机应用.2007,27(S1)：89-91.
[157]Yong W, Chun-Ming H, Du Zong-Xia. QoS-Awared Grid Workflow Schedule[J]. Journal of Software.2006,17(11):2341-2351.
[158]李慧芳,范玉顺.时间约束工作流模型的可调度性分析算法[J].计算机集成制造系统.2002,8(7)：527-532.
[159]邬伦,承继成,史文中.地理信息系统数据的不确定性问题[J].测绘科学.2006,31(5)：40-51.
[160]Wang L X, Mendel J M. Fuzzy basis functions, universal approximation, and orthogonalleast-squares learning[J]. IEEE Transactions on Neural Networks.1992,3(5):807-814.
[161]Jang J. ANFIS:Adaptive-network-based fuzzy inference system[J]. IEEE Transactions on Systems, Man and Cybernetics.1993,23(3):665-685.
[162]刘怡,张子刚.基于模糊层次分析法的工作流任务排序研究[J].计算机集成制造系统.2006,12(5)：688-691.
[163]Yi D, Jian C. Fuzzy control-based heuristic algorithm for load balancing in workflow engine[J]. Journal on Communications.2006(11):84-89.
[164]庞辉,方宗德.基于模糊时间Petri网的协同工作流模型研究[J].系统仿真学报.2008,20(6)：1567-1569.
[165]王生发,潘敏,郭剑峰.基于模糊决策的工作流互操作研究[J].微电子学与计算机.2008,25(7)：100-102.
[166]王志武,贾志娟,胡明生,等.基于网格工作流的决策资源协同调度模型[J].微计算机信息.2007,23(33)：177-179.
[167]Tsourveloudis N C, Dretoulakis E, Ioannidis S. Fuzzy work-in-process inventory control of unreliable manufacturing systems[J]. Information Sciences.2000,127(1-2):69-83.
[168]Schockaert S, De C M, Kerre E E. Spatial reasoning in a fuzzy region connection calculus[J]. Artificial Intelligence.2009,173(2):258-298.
[169]Dutta S. Approximate spatial reasoning:Integrating qualitative and quantitative constraints[J]. International Journal of Approximate Reasoning.1991,5(3):307-330.
[170]叶娜,李健.工作流引擎推进过程中m选n问题的研究[J].计算机应用研究.2009,26(11)：4098-4100.
[171]敖丽敏,祝晓东,周炜.基于IoC模式的工作流与应用系统的集成[J].计算机工程.2009,35(18)：69-71.
[172]张怡阳.基于依赖注入的移动终端应用开发[J].计算机应用.2009,29(S1)：282-284.
[173]焦丹勋,李春平.面向金税工程的依赖注入模式研究与应用[J].计算机工程与设计.2007,28(01)：182-184.
[174]Elrad T, Filman R E, Bader A. Aspect-oriented programming:Introduction [J]. Commun. ACM. 2001,44(10):29-32.
[175]Filman R, Elrad T, Clarke S. Aspect-oriented software development[M]. New York, NY, USA: Addison-Wesley Professional,2004.
[176]Atasu K, Pozzi L, Ienne P. Automatic application-specific instruction-set extensions under microarchitectural constraints [C].Proceedings of the 40th annual Design Automation Conference. Anaheim, CA, USA.2003
[177]张天戈.基于模型驱动的面向对象应用程序框架的关键技术研究[学位论文].复旦大学,2009.
[178]Fayad M, Schmidt D C, Johnson R E. Building application frameworks:object-oriented foundations of framework design[M]. Wiley Chichester,1999.
[179]Cardone R, Soroker D, Tiwari A. Using XForms to simplify Web programming[C].Proceedings of the 14th international conference on World Wide Web. Chiba, Japan.2005
[180]Ding X, Li X. Research of Model-Driven Interactive Automatic/Semi-automatic Form Building[C].Proceedings of the 2007 conference on Human interface. Beijing, China.2007
[181]Mamrak S A, Pole S.Automatic form generation[J]. Software:Practice and Experience.2002, 32(11):1051-1063.
[182]RIA. http://baike.baidu.com/view/706341.html.2009
[183].Moroney Laurence. Silverlight入门.http://msdn.microsoft.com/zh-cn/library/bb190632.aspx. 2010.
[184]Wikipedia. HTML 5. http://zh.wikipedia.org/wiki/HTML_5.2010-1-1,2010