基于Web Access Management实现图书馆电子资源远程访问

阐述如何利用WAM系统对读者进行身份认证以实现电子资源的校外远程访问,从而解决师生在校外能随时随地检索利用图书馆所订购的电子资源的问题,进而大大提高电子资源的利用率。

Interoperative fundus image and report sharing in compliance with integrating the healthcare enterprise conformance and web access to digital imaging and communication in medicine persistent object protocol

AIM:To address issues in interoperability between different fundus image systems,we proposed a web eyepicture archiving and communication system(PACS)framework in conformance with digital imaging and communication in medicine(DICOM)and health level 7(HL7)protocol to realize fundus images and reports sharing and communication through internet.METHODS:Firstly,a telemedicine-based eye care work flow was established based on integrating the healthcare enterprise(IHE)Eye Care technical framework.Then,a browser/server architecture eye-PACS system was established in conformance with the web access to DICOM persistent object(WADO)protocol,which contains three tiers.RESULTS:In any client system installed with web browser,clinicians could log in the eye-PACS to observe fundus images and reports.Multipurpose internet mail extensions(MIME)type of a structured report is saved as pdf/html with reference link to relevant fundus image using the WADO syntax could provide enough information for clinicians.Some functions provided by open-source Oviyam could be used to query,zoom,move,measure,view OICOM fundus images.CONCLUSION:Such web eye-PACS in compliance to WADO protocol could be used to store and communicate fundus images and reports,therefore is of great significance for teleophthalmology.

Development of Web Accessibility: Policies, Theories and Apporoaches

The article is intended to introduce the readers to the concept and background of Web accessibility in the United States. I will first discuss different definitions of Web accessibility. The beneficiaries of accessible Web or the sufferers from inaccessible Web will be discussed based on the type of disability. The importance of Web accessibility will be introduced from the perspectives of ethical, demographic, legal, and financial importance. Web accessibility related standards and legislations will be discussed in great detail. Previous research on evaluating Web accessibility will be presented. Lastly, a system for automated Web accessibility transformation will be introduced as an alternative approach for enhancing Web accessibility.

Framework to Model User Request Access Patterns in the World Wide Web

In this paper, we present a novel approach to model user request patterns in the World Wide Web. Instead of focusing on the user traffic for web pages, we capture the user interaction at the object level of the web pages. Our framework model consists of three sub-models: one for user file access, one for web pages, and one for storage servers. Web pages are assumed to consist of different types and sizes of objects, which are characterized using several categories: articles, media, and mosaics. The model is implemented with a discrete event simulation and then used to investigate the performance of our system over a variety of parameters in our model. Our performance measure of choice is mean response time and by varying the composition of web pages through our categories, we find that our framework model is able to capture a wide range of conditions that serve as a basis for generating a variety of user request patterns. In addition, we are able to establish a set of parameters that can be used as base cases. One of the goals of this research is for the framework model to be general enough that the parameters can be varied such that it can serve as input for investigating other distributed applications that require the generation of user request access patterns.

A sampling method based on URL clustering for fast web accessibility evaluation

When evaluating the accessibility of a large website, we rely on sampling methods to reduce the cost of evaluation. This may lead to a biased evaluation when the distribution of checkpoint violations in a website is skewed and the selected samples do not provide a good representation of the entire website. To improve sampling quality, stratified sampling methods first cluster web pages in a site and then draw samples from each cluster. In existing stratified sampling methods, however, all the pages in a website need to be analyzed for clustering, causing huge I/O and computation costs. To address this issue, we propose a novel page sampling method based on URL clustering for web accessibility evaluation, namely URLSamp. Using only the URL information for stratified page sampling, URLSamp can efficiently scale to large websites. Meanwhile, by exploiting similarities in URL patterns, URLSamp cluster pages by their generating scripts and can thus effectively detect accessibility problems from web page templates. We use a data set of 45 web sites to validate our method. Experimental results show that our URLSamp method is both effective and efficient for web accessibility evaluation.

基于Web技术的中国竹子网Access数据库建设

在对中国竹子网(www.chinesebarnboo.net)前期建设及其他竹子网站数据量分析的基础上,使用Access 2000建造了中国竹子网站数据库其内容为:竹业人士、竹子企业、图书架、期刊论文及其Web访问页。

基于Web服务和Access数据库的证书管理系统

为规范证书管理发放,设计以Web服务为平台,通过调用Access数据库中信息,开发证书管理系统。本系统运行稳定、安全、可靠,具有查看证书整体情况、领取情况、证书去向等功能,提高考务工作者发放证书效率,达到证书发放管理要求。

Accessibility Evaluation of Arabic E-Commerce Web Sites Using Automated Tools

Disabled people encounter many barriers while attempting to access the services on the web. Nevertheless, many tools, which could help them to access the web, are available. E-commerce websites have been also intensively and widely used. The e-commerce market in Saudi Arabia will hit $13.3 billion by 2015. This huge investment requires e-commerce websites to be accessible by different types of users. This paper explores the tools that usually used by disabled users while using the web. It also discusses a number of available tools that help designers, developers and testers to assess web accessibility. It also evaluates the accessibility of 3 popular Arab e- commerce websites using 5 accessibility testing tools;namely Achecker, TAW, Eval Access, MAUVE and FAE. This research has found that Most accessibility guidelines are covered by Achecker tool. Navigation, readability, input assistance and timing are the common found accessibility problems while assessing the accessibility of the targeted websites. It has been also revealed that HTML can influence accessibility evaluation as HTML errors are considered as accessibility problems. It has been clearly observed that improvements are needed for better web accessibility, although some tools did report a small number of accessibility problems for some websites.

基于博弈的Web应用程序中访问控制漏洞检测方法

针对工业互联网中程序的访问控制策略隐藏在源码中难以提取,以及用户的访问操作难以触发所有访问路径而导致逻辑漏洞的通用化检测难以实现的问题,将博弈思想应用于访问控制逻辑漏洞检测中,通过分析不同参与者在Web应用程序中对资源页面的博弈结果来识别漏洞,使得不同用户的访问逻辑能被有针对性地获取。实验结果表明,所提方法在开源的11个程序中检测出31个漏洞,其中8个为未公开的漏洞,漏洞检测覆盖率均超过90%。

Research on Application of Metacognitive Strategy in English Listening in the Web-based Self-access Learning Environment

Metacognitive strategies are regarded as advanced strategies in all the learning strategies.This study focuses on the application of metacognitive strategies in English listening in the web-based self-access learning environment(WSLE) and tries to provide some references for those students and teachers in the vocational colleges.

自建ASP组件获取Access位图并显示于Web页技术的研究

通过建立及实现 Active X DLL,介绍了用 ASP(Active Server Pages)技术从 Microsoft Access 97数据库中获取位图并在

Web services interface to EPICS channel access

Web services is used in Experimental Physics and Industrial Control System (EPICS).Combined with EPICS Channel Access protocol,Web services' high usability,platform independence and language independence can be used to design a fully transparent and uniform software interface layer,which helps us complete channel data acquisition,modification and monitoring functions.This software interface layer,a cross-platform of cross-language, has good interopcrability and reusability.

The Knowledge Base Development for the Web Content Accessibility Guidelines

Web Content Accessibility Guideline (WCAG) proposed by Web Accessibility Initiative is the most recognized regulation in the world in evaluating the accessibility of web contents and is one of the W3Cdocumentations. Currently,the WCAG documents are maintained as a non-computable dictionary like resources. In this study, we proposed a methodology to develop an ontological knowledge base with rules for the WCAG 2.0. Two WCAG techniques in different groups of techniques are used to illustrate the creation of the knowledge base and their application programming interfaces. For demonstrating purpose, a web-based WCAG validation system is built. With the proposed knowledge base and interfaces, computer programs can decide whether certain web content satisfies a particular WCAG technique. In other words, the WCAG documents have been successfully trans-formed to a computable recourse. Such sharable knowledge base and programming interfaces can be embedded into any system requiring the WCAG knowledge.

Cloud-Based Access Control to Preserve Privacy in Academic Web Application

Emerging cloud computing has introduced new platforms for developing enterprise academic web applications, where software, platforms and infrastructures are published to the globe as services. Software developers can build their systems by multiple invocations of these services. This research is devoted to investigating the management and data flow control over enterprise academic web applications where web services and developed academic web application are constructing infrastructure-networking scheme at the application level. Academic web services are invoked over http port and using REST based protocol;thus traditional access control method is not enough to control the follow of data using host and port information. The new cloud based access control rules proposed here are to be designed and implemented to work at this level. The new proposed access control architecture will be a web service gateway, and it published itself as a service (SaaS). We used three case studies to test our moodle and then we apply JSON parsers to perceive web service description file (WSDL file) and supply policies according to data are to be allowed or denied based on user roll through our parsing.

A web product data management system based on Simple Object Access Protocol

A new web product data management architecture is presented. The three-tier web architecture and Simple Object Access Protocol (SOAP) are combined to build the web-based product data management (PDM) system which includes three tiers: the user services tier, the business services tier, and the data services tier. The client service component uses the server-side technology, and Extensible Markup Language (XML) web service which uses SOAP as the communication protocol is chosen as the business service component. To illustrate how to build a web-based PDM system using the proposed architecture, a case PDM system which included three logical tires was built. To use the security and central management features of the database, a stored procedure was recommended in the data services tier. The business object was implemented as an XML web service so that client could use standard internet protocols to communicate with the business object from any platform. In order to satisfy users using all sorts of browser, the server-side technology and Microsoft ASP.NET was used to create the dynamic user interface.

高校内部业务系统Web端便捷访问机制研究

本文分析了高校内部业务系统Web端在外网环境下便捷访问的重要性,指出了现有业务系统在外网访问便捷性不足、安全性不够等问题。基于此,本文提出了基于用户体验的高校业务系统Web端便捷访问优化方案,旨在通过与统一身份认证平台和业务系统管理控制平台相结合的工作机制,使师生一次登录即可实现对相关系统的顺畅访问,为管理者提供了监控和审计学校业务系统的全面视角,同时提高了内部业务系统的可访问性和安全性。

基于Web的城轨联锁维护机设计与实现

传统的基于C/S模式下的联锁维护机程序安装、操作复杂,对用户具有一定的要求。为提高产品的用户友好性,利用SpringBoot、Vue、数据库等框架技术设计与实现一种基于Web的联锁维护机,具有传统联锁维护机的站场图形显示、网络拓扑图形显示、历史数据查询等功能,维护机功能导航栏以列表形式展示在页面上,用户登录网页后点击导航栏可查看相应的页面。与传统的C/S模式联锁维护机相比,基于Web的联锁维护机的访问更简单,通过浏览器访问网页的方式更贴近用户的使用习惯。

Web Services的访问控制研究综述

随着Web Services的发展,它本身的安全问题已经成为制约其发展的关键因素。本文主要论述了Web Ser-vices的访问控制技术的研究现状及其问题。首先,从协议层次出发讨论了Web Services的访问控制技术的研究方法。然后分别介绍了XML文档和SOAP协议的访问控制技术,以及Web Services的相关访问控制规范。最后总结全文并提出了需要进一步研究的问题。

基于角色-页面模型的WEB用户访问控制方法

论文以RBAC(Role-BasedAccessControl:基于角色的访问控制)理论为基础,利用B/S应用模式的特点,将WEB应用的业务逻辑和对应的显示逻辑进行合理的划分,通过控制应用系统各个页面对于不同用户角色的可见性,提出了基于角色—页面模型的Web用户访问权限的控制方法,简化了RBAC模型的实现。该方法能够减少Web应用开发中繁琐的逻辑判断代码,方便应用系统的实施,并在“全国高校仪器设备和优质教育资源共享系统”中得到了应用。