Wash Away Your Troubles: Examining the Effect of Organization and Information Availability with a Car Wash Cashier Interface

摘要

An existing car wash user interface was evaluated and redesigned to improve novice andexperienced-user performance by implementing human factors methods. Researchersconducted a heuristic evaluation, user needs, environmental, and task analyses to outlineusability issues within the existing system, in addition to critical considerations regarding theredesign. Results revealed five areas of difficulty within the existing system: organization,visibility, visual distractions, system feedback, and error correction. Researchers generateddesign strategies to mitigate the aforementioned areas of difficulty, and incorporated theminto prototype iterations. A/B usability testing was conducted with the prototype iterations tocompare novice and experienced-user performance with horizontal and vertical navigationbars containing and excluding price information. Results indicated that overall the revisedsystem was a success, with the horizontal no price iteration being most effective. However,there were several remaining areas of difficulty that require further modification and testing.