Department of Industrial and Systems Engineering, Mississippi State University, PO Box 9542, Mississippi State, MS 39762, USA.
Appl Ergon. 2013 Nov;44(6):1033-8. doi: 10.1016/j.apergo.2013.04.014. Epub 2013 May 10.
Inconsistencies among testing methods and results in previous research prompted this study that builds upon a systematic usability testing research framework to better understand how interface medium influences users' abilities to detect usability flaws in applications. Interface medium was tested to identify its effects on users' perceptions of usability and abilities to detect usability problems and severe usability problems. Results indicated that medium has no effect on users' abilities to detect usability problems or perceptions of usability. However, results did indicate an interaction between the medium and the tested application in which users were able to identify significantly more usability problems on a higher fidelity medium using a particular application. Results also indicated that as users' perceptions of an application's usability increases, the users are less able to detect usability problems in that application. Usability testing should begin early in the design process, even if low fidelity mediums will be used.
先前的研究中测试方法和结果的不一致促使本研究建立在一个系统的可用性测试研究框架之上，以更好地了解界面媒介如何影响用户发现应用程序中可用性缺陷的能力。测试了界面媒介，以确定其对用户对可用性的感知以及发现可用性问题和严重可用性问题的能力的影响。结果表明，媒介对用户发现可用性问题或对可用性的感知没有影响。但是，结果确实表明，在特定应用程序中，媒介和测试应用程序之间存在交互作用，用户在更高保真度的媒介上能够识别出更多的可用性问题。结果还表明，随着用户对应用程序可用性的感知增加，用户在该应用程序中发现可用性问题的能力就越低。即使将使用低保真度媒介，可用性测试也应在设计过程的早期开始。
