ISO Usability Standards CT-UT Practice Questions (Page 3)

Questions 11–15

1. 11foundation · easy

   Which principle is central to ISO 9241-210 (Human-centred design for interactive systems)?

   • ADesigning primarily for the average user to simplify the process
   • BDesign based on an explicit understanding of users, tasks, and environments
   • CInvolving users only at the final evaluation stage
   • DMaximizing the number of features to satisfy all potential users
   Reveal Solution Discussion Select an answer first
2. 12foundation · easy

   In the context of ISO 9241, which core usability principle measures how accurately and completely users achieve their goals when using a product?

   • AEffectiveness
   • BAccessibility
   • CEfficiency
   • DSatisfaction
   Reveal Solution Discussion Select an answer first
4. 13application · medium

   A usability analyst is comparing two versions of a data entry form for a CRM system. Version 1 has a 95% task completion rate but users report high frustration. Version 2 has an 85% task completion rate but users report high satisfaction. According to ISO 9241-11, which version is MORE usable overall?

   • AThe answer depends on the context of use and the relative importance of effectiveness, efficiency, and satisfaction
   • BVersion 1, because effectiveness is the most important component of usability
   • CBoth versions are equally usable because they trade off effectiveness and satisfaction
   • DVersion 2, because satisfaction is the most important component of usability
   Reveal Solution Discussion Select an answer first
5. 14foundation · easy

   According to ISO 9241-11, usability is defined as 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. Which of the following is a component of the 'context of use' as defined in this standard?

   • AGoals, tasks, and outcomes
   • BEffectiveness, efficiency, and satisfaction
   • CUsers, tasks, equipment, and environment
   • DUser interface, navigation, and content
   Reveal Solution Discussion Select an answer first
6. 15application · medium

   A usability team is comparing two versions of a checkout flow for an e-commerce site. In Version A, users complete purchases with fewer clicks but make more errors entering payment details. In Version B, users take longer but make fewer errors. According to the ISO 9241-11 usability principles, which version should the team consider MORE usable if the goal is to minimize user errors?

   • ABoth versions are equally usable because they trade off efficiency and effectiveness
   • BVersion A, because satisfaction is higher when tasks are faster
   • CVersion B, because it has higher effectiveness due to fewer errors
   • DVersion A, because it has higher efficiency due to fewer clicks
   Reveal Solution Discussion Select an answer first