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Usability of the digital library: An evaluation model.

机译：数字图书馆的可用性：一种评估模型。

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摘要

The main research goal of this dissertation is to develop a model and a suite of instruments to evaluate the usability of academic digital libraries. Usability in this study was examined from the perspectives of effectiveness, efficiency, satisfaction, and learnability. The model that was developed considers both quantifying elements such as accuracy rate, time, and number of steps required to complete a task, and the subjective criterion, satisfaction, which is further broken down into the areas of ease of use, organization of information, terminology and labeling, visual appearance, content, and mistake recovery. The model was tested at two academic digital libraries. It is a cross-institutional usability study. The study recruited a total of forty-one subjects and was divided into two stages to confirm findings.; The study examined the interlocking relationships among effectiveness, efficiency, and satisfaction. It found that the relationships are statistically significant. The longer the time it took for a subject to perform a task, the more steps involved. The greater the number of steps involved in completing a task, the lower the satisfaction expressed by the subject. The longer the time spent on completing a task, the lower the satisfaction expressed by the subject. However, it should be noted that each criterion has its own emphasis and should be measured separately.; The research uncovered the user's criteria for ease of use, organization of information, terminology, visual attractiveness, and mistake recovery. The findings are helpful in enhancing the usability of the digital library.; The issues of "user lostness" and navigation disorientation were examined, and the causes were identified.; The study also examined the click cost issue. It found that 73% of the participants expected the click(s) to lead them eventually to the correct answer. Each click in the digital library should bring users closer to the answer.; The study established that the demographic factors (gender, age, status, academic major, ethnic background, years at the institution, and frequency of using library Web sites) do not have a statistically significant impact on performance (i.e., effectiveness and efficiency). However, different attitudes among ethnic groups were found in rating satisfaction. Future research should recruit more subjects in each ethnic group to examine this cross-culture usability issue further.
机译：本文的主要研究目标是建立一个评估学术数字图书馆可用性的模型和一套工具。从有效性，效率，满意度和可学习性的角度检查了本研究中的可用性。开发的模型同时考虑了量化因素，例如准确率，时间和完成一项任务所需的步骤数，以及主观标准满意度（可进一步细分为易用性，信息组织，术语和标签，外观，内容和错误恢复。该模型在两个学术数字图书馆进行了测试。这是一项跨机构的可用性研究。该研究共招募了41名受试者，分为两个阶段以确认研究结果。该研究考察了有效性，效率和满意度之间的相互联系。发现这些关系具有统计学意义。主体执行任务所花费的时间越长，涉及的步骤越多。完成一项任务涉及的步骤越多，受试者所表达的满意度就越低。完成任务花费的时间越长，受试者所表达的满意度越低。但是，应该指出的是，每个标准都有其自己的重点，应分开衡量。该研究揭示了用户在易用性，信息组织，术语，视觉吸引力和错误恢复方面的标准。这些发现有助于增强数字图书馆的可用性。检查了“用户迷失”和导航迷失方向的问题，并查明了原因。该研究还研究了点击成本问题。结果发现73％的参与者希望点击会最终引导他们获得正确答案。数字图书馆中的每次点击都应使用户更接近答案。该研究确定，人口统计学因素（性别，年龄，地位，学术专业，种族背景，机构工作年限和使用图书馆网站的频率）对绩效（即有效性和效率）没有统计学上的显着影响。但是，在满意度评估中发现了不同种族之间的态度。未来的研究应该在每个族裔群体中招募更多的学科，以进一步研究这种跨文化可用性问题。

著录项

  • 作者

    Jeng, Judy H.;

  • 作者单位

    Rutgers The State University of New Jersey - New Brunswick.;

  • 授予单位 Rutgers The State University of New Jersey - New Brunswick.;
  • 学科 Library Science.; Information Science.
  • 学位 Ph.D.
  • 年度 2006
  • 页码 202 p.
  • 总页数 202
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 图书馆学、图书馆事业;信息与知识传播;
  • 关键词

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