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  • Should All Links be Underlined?

    Links are the primary means by which users navigate Web sites. If users do not notice, or do not think that links are clickable, they may not use the links.  Learn about the best practices for formatting links.

  • Creating Usable Domain Names

    URLs are an important part of the user interface.  Find out the guidelines and strategies for creating usable domain names based on GSA's experience changing firstGov.gov to USA.gov.

  • Usability Testing a Web Content Management System

    Selecting a Web content management system (WCMS), can be a daunting process. As part of its selection process, HHS reviewed the market and selected several applications to assess.

  • Web Site Credibility

    The perception of credibility goes a long way in reassuring users that they've reached a website that provides useful content and that there's substance behind that content.

  • Breadcrumb Navigation

    Breadcrumbs are designed to allow visitors to quickly navigate a site by providing a trail. They help users develop mental models of the site structure as well.

  • Determining the Correct Number of Usability Test Participants

    Determining the appropriate number of participants for usability tests can be difficult. Use the cumulative binomial probability to help determine the correct number of participants needed.

  • Reading Onscreen: The Effects of Line Length on Performance

    Learn which types of documents users prefer to read online and which they usually "print then read".  When reading online, line length impacts performance.

  • Usability Labs: Portable Versus Fixed

    You can do testing in either a formal or informal setting. Compare the benefits of fixed labs and portable labs.

  • Navigation: Left is Best

    Learn about which location for navigation is best to help users access subsequent content pages.

  • Getting the Complete Picture with Usability Testing

    Good usability testing provides an opportunity for clear-cut improvements to a website. To get the best possible picture collect information about their effectiveness, their efficiency, and their satisfaction level.

  • Consider as Many Design Alternatives as Possible: The Value of Parallel Design

    By using the parallel design method you can consider as many design ideas as possible before selecting the best with which to begin the iterative design and testing process.

  • Usability Statements of Work

    Write SOWs that include baseline and redesign segments related to usability engineering, which helps agencies save money.

  • Recruiting User Testing Participants

    To meet your users’ needs, it is essential to know your audience and to design for them. A key way to do this is by identifying your Web site’s primary users and recruiting a sample for usability testing.

  • Age-Related Research-Based Usability Guidelines

    There are definite, predictable degenerative effects of aging on a person’s ability to effectively and efficiency interact with Web-based systems.  Learn about the research-based guidelinesfor building sites with seniors as an audience.

  • Judging the Severity of Usability Issues on Web Sites: This Doesn't Work

    Even highly experienced usability specialists cannot agree on which usability issues will have the greatest impact on usability.  Find out more about the challenges of of ranking or judging the severity of usability issues.

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