基于WEB信息系统的安全架构研究

随着信息技术的快速发展,信息安全越来越引起广泛关注,基于Web信息系统的安全架构与策略研究也越来越深入。该文讨论了不同类型信息系统安全体系结构的特征,并研究了信息系统安全体系结构的构成要素,提出了基于Web信息系统安全架构的模型。     

基于Web服务的MIS的研究与开发

针对目前各管理信息系统存在着互操作困难的问题,分析了开发基于Web服务的管理信息系统的必要性和现实意义.研究了这种系统的设计思想和体系结构,并在此基础上以＂基于Web服务的海事系统人员绩效评估信息系统＂的开发为例,讨论了系统的开发思路,以及Web服务的粒度及实现,安全机制的设计等关键技术.     

基于Web Services的面向服务信息集成研究

面向服务的信息集成能快速整合资源，构建基于IT环境的信息系统。Web Services提供了面向服务的具体实现技术。文章在分析面向服务的体系结构概念和Web Services特征的基础上，提出了一种基于Web Services的信息集成方案，并对构建过程进行了深入探讨。     

基于Web服务的企业信息系统的设计与实现

本文首先简单介绍了Web服务的定义和工作原理.而后提出一种在开放式环境下,用Web服务技术来实现的适用于企业分布式信息系统的解决方案和体系结构,并结合实例说明了其部分功能的实现方法和调用过程.该方案很好地满足了企业业务分散处理的需要,提高了企业组建企业信息系统的效率和质量.     

基于XML的Web服务安全解决方案

随着Web服务越来越广泛地使用到企业应用领域,Web服务的安全问题引起了人们的关注.该文针对Web服务的体系结构分析了Web服务需求,并提出了基于XML的Web服务安全解决方案.     

基于Web服务集成的信息系统安全机制研究

给出了基于Web服务集成信息系统的运作模式,分析了Web服务的授权、认证以及通信安全.局域网是相对安全的环境,非同一台服务器上的Web服务调用需要中等的通信安全,因此用对称加密思路详细构建了局域网内基于Web服务的信息系统安全机制,并以编程试验验证.     

基于Web服务的企业信息系统的设计与实现

本文首先简单介绍了Web服务的定义和工作原理。而后提出一种在开放式环境下，用Web服务技术来实现的适用于企业分布式信息系统的解决方案和体系结构，并结合实例说明了其部分功能的实现方法和调用过程。该方案很好地满足了企业业务分散处理的需要，提高了企业组建企业信息系统的效率和质量。     

Web服务安全体系结构研究

随着Web服务的普及，构建解决其各种安全问题的安全体系结构研究变得非常有意义。在分析了Web服务的基本组件、协议以及Web服务所需要的安全保证之后，提出了一种分层的安全体系结构。该体系结构充分利用了现有的安全技术和设施，综合了传输层次和SOAP层次上的安全措施来保证Web服务的安全。另外还对各层次上应采取的措施和应达到的安全性要求做了详细的分析。     

基于SOA与Web服务的后勤信息资源整合框架研究

分析了后勤信息资源的现状及整合需求,以面向服务体系结构SOA为指导,设计了基于Web Services的后勤信息资源整合的SOA框架,通过对现有后勤信息系统功能组件和数据的服务封装,利用BEPL和UDDI实现服务的动态绑定,建立了从网络协议到用户角色、服务质量保证的安全体系,实现了后勤信息资源的综合集成。     

基于SOA的分布式科研信息系统

如何充分利用原有系统的资源，建立开放灵活、低代价的系统已成为高校信息化建设的关键。面向服务的体系结构（SOA）为解决分布式环境中软件重用、扩展和提高软件开发效率提供了解决方案。分析了高校信息化建设中面临的“信息孤岛”问题，研究了利用Web服务实现基于SOA的分布式系统的有效方法，并给出了采用SOA体系结构开发的科研信息系统的框架、集成原理和Web服务实现等关键实现技术。     

基于WS-Security的Web服务安全的实现

Web服务应用越来越广泛,Web服务中的安全缺陷与漏洞也在不断增多,Web服务安全性问题日益突出。现有的保护Web服务的安全技术存在一些缺点和不足,而WS-Security规范的出现弥补了这些缺陷。本文在此基础上先对WS-Security规范进行了阐述,然后以.NET Framework 3.0为平台,利用该框架新增的组件Windows通信基础,给出了一个具体的Web服务安全的实现方法。     

Building toward Capability Specifications of Web Services Based on an Environment Ontology

Automated Web service discovery requires Web service capability specifications of a high precision. Semantic-based approaches are inherently more precise than conventional keyword-based approaches. This paper proposes to build capability specifications of Web services based on an environment ontology, the main concepts of which are the environment entities in a particular application domain and their interactions. For each environment entity, there is a tree-like hierarchical state machine modeling the effects that are to be achieved by the Web services on this environment entity. The proposed approach is based on the assumption that the Web service capability specifications, built on the effects of the Web services on the environment entities, are more accessible and observable. Algorithms for constructing the domain environment ontology and the matchmaking between the Web service capability specifications are presented to show how Web service discovery is supported. An example on travel service is given to illustrate this proposed approach.     

基于完备回溯树的语义Web服务自动组合

基于语义的Web服务自动组合方法具有较高的效率及自动化程度,能更好地解决复杂的服务组合问题。提出一种基于完备回溯树的语义Web服务自动组合方法（CBT_ASWSC）,该方法为Web服务引入语义以实现对象间的语义转化并将搜索空间受限于完备回溯树中,在加快Web服务组合效率的同时提高了Web服务组合的成功率。     

Flexible Web services integration: a novel personalised social approach

Abstract

Dynamic composition or integration remains one of the key objectives of Web services technology. This paper aims to propose an innovative approach of dynamic Web services composition based on functional and non-functional attributes and individual preferences. In this approach, social networks of Web services are used to maintain interactions between Web services in order to select and compose Web services that are more tightly related to user’s preferences. We use the concept of Web services community in a social network of Web services to reduce considerably their search space. These communities are created by the direct involvement of Web services providers.     

基于三层组织模型的一种Web服务组合策略

在研究Web服务三层组织模型和有限状态自动机的基础上,提出了一种新的Web服务组合策略,给出了一个服务的可组合性定理,并证明了定理的正确性。该策略以Web服务三层组织模型为基础,简化了BPEL中基于有限状态自动机的Web服务自动组合,精简了服务组合流程。最后对这种新的组合策略的优缺点作了分析。     

Modeling and verification of Web services composition based on model transformation

With the rapid development of Cloud computing, social computing, and Web of Things, an increasing number of requirements of complexity and reliability for modeling Web services composition have emerged too. As more reliable methods are needed to model and verify current complex Web services composition, this paper proposes a method to model and verify Web services composition based on model transformation. First, a modeling and verifying framework based on model transformation is established. Then, Communicating Sequential Process (CSP) is defined according to the features of Web services composition and the corresponding model checking tool Failure Divergence Refinement (FDR) is introduced. The transformation approaches between Business Process Execution Language (BPEL) and CSP are later defined in detail. Lastly, the effect of this method is evaluated by modeling and verifying the Web services composition of a Online Shopping System. The results of the experiments show that this method can greatly increase the reliability of Web services composition. Copyright © 2016 John Wiley & Sons, Ltd.     

The design with object (DwO) approach to Web services composition

Web services are being adopted, more and more, as a viable means of accessing Web-based applications. With a Web-native XML based solution, Web services can, thus, tackle the problem of heterogeneous sources and make them inter-operable. At present, there is a trend towards deploying business processes as composite Web services, known as Web services compositions. Web services compositions are synthesized by researchers from elementary web services, offering the opportunity for service providers and application developers to create value-added services, through Web services composition. However, a problem exists in the current distribution process of Web services compositions: the general analysis and selection of services can be overly complex and un-systemic. There is a need to manage composite Web services, based on these emerging technologies, but the research related to ranking candidate services and selection of optimization strategies is sparse. Nothing has yet been published that considers the constraints of non-functional service properties. In this paper, a design with object (DwO) approach is proposed. This has the advantage of being an object-orientated concept, which characterizes (i) changing the design object without directly changing the Web services themselves, and (ii) information hiding. A systemic but complete composition process is also proposed for Web services composition, which shows great promise in the emerging demand for composite Web services.     

基于语义的Web服务体系结构

现有的基于XML的Web服务规范或标准没有提供足够的手段来描述Web服务,以支持发现、组合以及执行Web服务的一般机制。因此,分布的、异构的和动态变化的Web服务的交互会产生很多问题。为了更有效地适应Web服务的分布的、异构的、不断变化的特点,针对现有的SOA架构健壮性不强的问题,提出了基于语义的SOA。通过增加Web服务的语义描述,并以这种具有语义的描述来发布和发现Web服务。从而使这种架构不仅支持功能的匹配,而且还能支持实现最佳质量标准的匹配。     

Orchestrating Web Services with BPEL

Effective Web services demand careful synchronization on various abstraction levels. The Business Process Execution Language supports modeling and executing business processes from both the user and systems perspectives. In this way, Web services application developers can use BPEL to orchestrate service interactions in a global system view and to manage individual interactions based on outside events. More and more Web service providers are using BPEL to integrate their services independently of vendors and related programming languages. In this column, we introduce BPEL and presents some guidelines for using it in your Web services management.     

P2P网络下基于K-Wmeans聚类算法的Web服务发现研究

针对P2P网络的动态性、分布性等特点,提出了一种运用加权改进的K-Wmeans算法对Web服务进行聚类分析的方法。通过对P2P网络中各个节点上Web服务进行分布式聚类,可使服务请求者按照类别更准确快速地发现所需的Web服务。最后分析了算法的时间复杂度,并通过实验证明了此种方法在P2P环境下的Web服务聚类中存在一定的优越性。