Usability CT-UT Practice Questions (Page 2)

Questions 6–10

1. 6expert · hard

   A usability test of a medical device interface shows that all participants completed the task, but 40% made a critical error that could harm a patient. The average time was fast, and participants reported high satisfaction. Which usability attribute should be prioritized for improvement, and why?

   • AEffectiveness, because the high error rate indicates that the task is not being completed correctly, despite apparent success.
   • BEfficiency, because the fast time suggests users are rushing and making errors.
   • CEfficiency and satisfaction, because both are low.
   • DSatisfaction, because users are satisfied but unaware of the errors.
   Reveal Solution Discussion Select an answer first
2. 7application · medium

   A software team is designing a data-entry system for accountants who work in a quiet office with dual monitors and a full keyboard. The team is considering a touch-optimized interface with large buttons. Which context-of-use component makes this design choice inappropriate?

   • AUsers, because accountants are not familiar with touchscreens.
   • BTasks, because data entry is a complex task that requires precision.
   • CEnvironment, because the office is quiet and not conducive to touch input.
   • DEquipment, because accountants use a keyboard and mouse, not a touchscreen.
   Reveal Solution Discussion Select an answer first
4. 8foundation · easy

   Which of the following is the best definition of usability in the context of software and systems?

   • AThe overall pleasure and emotional response a user experiences when interacting with a product, regardless of task completion.
   • BThe ability of a product to be used by the widest possible range of users, including those with disabilities.
   • CThe extent to which a product or system is free from defects and meets its functional requirements.
   • DThe degree to which a product or system can be used by specified users to achieve specified goals with effectiveness, efficiency, and satisfaction in a specified context of use.
   Reveal Solution Discussion Select an answer first
5. 9expert · hard

   A company is developing a mobile app for both warehouse workers who wear gloves and office managers who use a desktop. The design team proposes a single interface with large touch targets and voice input. Which context-of-use consideration is most likely to be overlooked in this approach?

   • AThe equipment differs significantly between the two user groups, so a single interface may not suit both.
   • BThe users have the same characteristics, so the design is appropriate.
   • CThe environment is the same for both groups, so no adjustment is needed.
   • DThe tasks are identical, so the interface can be the same.
   Reveal Solution Discussion Select an answer first
6. 10application · medium

   A company is developing a mobile app for field technicians who work outdoors in bright sunlight and often wear work gloves. The design team proposes a high-contrast interface with large buttons and voice input. Which context-of-use components are they primarily addressing?

   • AEquipment and users
   • BTasks and environment
   • CEnvironment and equipment
   • DUsers and tasks
   Reveal Solution Discussion Select an answer first