You're defining usability test tasks for a web shop for mobile phones and smartphones. Finding out whether users are able to place an order easily has been identified as the main goal of the usability test.
Which of the following is a reasonable task definition to include in the test?
A well-defined usability task uses a realistic scenario and goal (''find a suited smartphone within your $200 budget with infrared sensor and order it''), without prescribing exact clicks. This lets you observe how users naturally navigate, search, and complete the order process - directly measuring the main goal of placing an order.
Usability reviews aim to identify potential usability problems based on certain criteri
a. Which of the following is a reasonable criterion for a usability review?
Usability reviews are grounded in established guidelines, such as ISO 9241-110 or Nielsen's heuristics, that specify how interfaces should behave to support effectiveness, efficiency, and satisfaction. These standards provide objective criteria against which an expert can judge a design's usability.
Which of the following is the correct distinction between formative and summative usability evaluation?
Formative evaluations are conducted during development to identify and fix usability issues as they arise, guiding iterative design improvements. Summative evaluations are performed after a design is stable to measure its overall effectiveness and compare it against benchmarks or requirements.
Which of the following are advantages of using a usability lab?
i. The context is natural
ii. Test sessions are easy to observe
iii. Inexpensive setup
iv. Similar conditions for all sessions
v. Easy recording of sessions
A usability lab provides a controlled environment where sessions are straightforward to observe (ii), conducted under consistent conditions (iv), and easily recorded for later analysis (v). Natural context (i) and low cost (iii) are not advantages of a lab setting.
You're conducting a user survey and you have reached the third stage, selecting an appropriate questionnaire. You have decided to use a standardized questionnaire as you want to benchmark against previous usability measurements.
Which of the following user questionnaires allow benchmarking against previous usability measurements?
i. SUS
ii. SUMI
iii. WAMMI
All three instruments - SUS, SUMI, and WAMMI - are standardized questionnaires with established normative datasets, enabling you to compare your results against those from prior studies or industry benchmarks.
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