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“ 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.” (British Standards Institution, 1998)
“ Making whatever you’re working on easier to use for who ever is going to use it.” (Steve Krug, 2001)
“ An element of design, focusing on ‘can this be used when it’s done?’ rather than just making it look good.” (Steve Krug, 2001)
“ On the Web, usability is a necessary condition for survival. If a website is difficult to use, people leave” (Jakob Nielsen, 2003)
Inspector examines the website to check whether it complies with a set of design principles
- Nielsen’s Heuristics
Triacca, Luca, Alessandro Inversini, and Davide Bolchini. “Quality of Web Usability Evaluation Methods: An Empirical Study on MiLE+.” Seventh IEEE International Symposium on Web Site Evolution . 2005. 22-29. Print.
Task Scenario No.: 1 Inspector’s Name: Kelly Session Date: 3/20/2009 Session Start Time: 9:00 am Session End Time: 10:00 am Fig. 1 An example of data collection and analysis form. Heuristic violated Usability defect Comments Navigation Inconsistent overall navigation The user was confused by the different navigation systems. Semiotics Unclear links labels The user would like simple wordings without the use of jargon. Graphics Contrast between text and background The user found it difficult to read the wordings on the webpage.
You have a citation for a journal article that you are interested in and you want to find out if the library has a copy of the journal article.
You are working on a research related to economic recession and you want to find some books that provide information on it.
You are working on a term paper and you need to cite resources used in your paper, however you have no idea on how to do citation. You want to find out if the library provides information on how to do citation.
You just recognized two of the books you checked out from the library are overdue, you want to find out how much you own in the fines.
You have some photos that you want to resize, so you want to find out if Adobe Photoshop is available on the computers at the library.
Severity Rating Issue 3 Unclear link labels [Semiotics] Inconsistent overall navigation [Navigation] Information overload [Cognitive] Inefficient search function [Others] Insufficient system reaction to errors for a user [Technology/Performance] Unmatched/unexpected information [Content] 2 Contrast between text and background [Graphics] Backward navigation [Navigation] Duplicate Information [Navigation] Item not in category as expected [Navigation] Image information [Graphics] Scripting errors [Technology/Performance] Video is not able to accommodate all users [Others] 1 Grouping of left navigation bar [Navigation] Visited vs unvisited states [Navigation] Inflexible layout [Graphics] Uncertainty on currency of information [Content] Pop-up windows [Others] Unexpected file format [Others]