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Usability as an Assessment Method: An introduction that examines how usability studies can provide useful evidence to inform decision-making. Information Services Assessment Council May 11, 2006.
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Usability as an Assessment Method:An introduction that examines how usability studies can provide useful evidence to inform decision-making Information Services Assessment Council May 11, 2006
assessmentan ongoing process in which services, resources and performance are measured against the expectations of users, and improvements are made to satisfy user needs effectively and efficiently.
ISO standard ISO 9241-11 (1998) Guidance on Usability defines usability as: • The extent to which a product can be used by specified users to achieve specified goals with effectiveness, efficiency and satisfaction in a specified context of use.
Usability Testing A means for measuring how well people can use a web page (or a computer interface, document, or device) for its intended purpose.
Benefits of Usability Testing • Better user experience • Better understanding of users • Lower support costs
Conduct a Usability Study When: • Designing a new user interface • Re-designing an existing interface • Results will inform specific decisions • Time and other resources permit
Usability Testing Process • Specify objectives • Identify tasks • Get permission from HSCL • Decide method of capturing results • Recruit participants • Choose a facilitator • Conduct tests
Usability Testing Process cont. • Analyze and report results • Identify problems and possible solutions • Do another round of testing to determine if your solutions work
Specify Objectives • What do you want to learn? • How will the information be used?
Identify tasks • Test important features • Test areas where you expect problems • Test your assumptions
Recording methods • Observers taking notes • Note takers and video recording • Screen capture software • Software that combines screen capture and video
Recruiting Participants • 3-4 participants per study Recruit loosely and grade on a curve. - Steve Krug
Facilitation • Get their consent • Make it clear that you’re testing the site, not them • Encourage them to think out loud
Analyzing results • Can they find their way around? • Look at task completion times • Watch for head slappers and shocks • Remember, you’re seeing their best behavior
Reporting results • Report problem areas to developers • Test possible solutions to make sure the chosen solution works • Do a presentation to tell everyone how much usability testing improved your site
Usability Testing Resources • Jeffrey Rubin’s Handbook of Usability Testing • Steve Krug’s Don’t Make Me Think! A Common Sense Approach to Web Usability • Steve Krug’s site, www.sensible.com
Information Services Assessment Council members Susanne Clement, Libraries Jill Glaser, IT Ryan Papesh, NTS Thelma Simons, IT John Stratton, Libraries Bill Myers, IS
Call on ISAC members to: • Consult, advise and assist in the development of assessment initiatives. • Identify other campus resources for assessment-related services. • Provide oversight and assure coordination with other IS assessment activities.
Assessment presentations available at: www.informationservices.ku.edu/assessment/