Question 1

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?

Accepted Answer

B

Explanation: A well-defined usability task should be realistic, goal-oriented, and allow for the observation of a user's natural interaction with the system. Option B provides a clear scenario with context (broken phone) and constraints (budget, feature), which represents a typical user's goal. This task structure enables the examiner to assess the entire process from searching and filtering to completing the order, directly addressing the test's main objective of evaluating the ease of placing an order. It avoids prescribing specific steps, which is crucial for identifying potential usability issues.

Question 2

How can the approach for conducting user surveys be summarized best?

Accepted Answer

B

Explanation: This option provides the most accurate and complete summary of the standard process for conducting a user survey in usability testing. The process begins with planning and stakeholder interviews to define goals. It is followed by selecting or designing the questionnaire, deploying it to users, analyzing the collected data, and finally, communicating the findings. This sequence represents a logical, end-to-end workflow, capturing all critical phases from inception to reporting.

Question 3

A “usability requirement” is

Accepted Answer

D

Explanation: A usability requirement is a non-functional requirement that specifies 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. It defines measurable criteria for the ease of use and user-friendliness of a system or component. These requirements are essential for guiding design and for establishing the basis against which the final product's usability will be formally tested and validated. They are distinct from functional requirements, which define what the system does.

Question 4

What is the System Usability Scale (SUS)?

Accepted Answer

C

Explanation: The System Usability Scale (SUS) is a standardized, post-test questionnaire designed to measure the subjective perception of usability. Developed by John Brooke in 1986, it consists of a 10-item questionnaire with five response options for respondents, based on a Likert scale. It is technology-agnostic and provides a single, global score representing a composite measure of perceived usability. Its simplicity, reliability, and validity have made it a widely adopted industry standard for collecting user feedback on a system's ease of use.

Question 5

As an expert for usability, you’re in charge of the usability part of the development of a business
application for a large customer. You have worked as a usability expert with the development team
for two years and are operating well together; the developers value your feedback and give their
bests implementing your suggestions. The product is in an early stage, so there’s only a rudimentary
prototype available.
Given this information, what is the best approach to verify the usability at the current stage?

Accepted Answer

A

Explanation: Given the project is in an early stage with a "rudimentary prototype," a usability review is the most appropriate and efficient approach. This method, also known as an expert review or heuristic evaluation, allows the usability expert to leverage their knowledge to inspect the prototype against established usability principles. It is a cost-effective method that provides rapid, actionable feedback to the development team. This is ideal for early-stage artifacts where formal user-based testing would be premature and less efficient. The established positive relationship with the development team further enhances the effectiveness of this collaborative, expert-driven feedback loop.

Question 6

During a usability test, a user suggested that a quick search box on every page would help a lot for
several of the main tasks. You added this finding to the list.
What’s the correct classification for these kinds of findings?

Accepted Answer

C

Explanation: The user's suggestion for a new feature, like a quick search box, is not a direct problem with the existing interface but an idea for enhancement. In the context of usability testing, such findings are classified as "good ideas" or "user suggestions." They are valuable input for future development but are distinct from usability problems, which are issues that hinder users from completing tasks with the current design. This classification helps teams prioritize fixes for existing problems separately from considering new features.

Question 7

What does the Equality Act address?

Accepted Answer

B

Explanation: The Equality Act 2010 is a key piece of UK legislation that consolidates and replaces previous anti-discrimination laws. Its primary purpose is to legally protect people from discrimination in the workplace and in wider society. It covers "protected characteristics," including disability. For digital services, this means organizations have a legal duty to make "reasonable adjustments" to ensure their websites and apps are accessible to people with disabilities, as failure to do so can be considered a form of discrimination.

Question 8

Which of the following elements are addressed by the WCAG? i. Resizability of text ii. Visually appealing design iii. Text alternatives iv. Keyboard accessibility v. Mouse input

Accepted Answer

D

Explanation: The Web Content Accessibility Guidelines (WCAG) are built on four principles: Perceivable, Operable, Understandable, and Robust. Within these principles, WCAG specifies success criteria for various elements. It requires resizable text (SC 1.4.4), text alternatives for non-text content (SC 1.1.1), and full keyboard accessibility (Guideline 2.1). It also addresses pointer inputs (like a mouse) under Guideline 2.5, covering aspects like pointer gestures and target size. WCAG does not, however, mandate subjective aesthetic qualities like a "visually appealing design"; its focus is on functional accessibility, not on visual appeal.

Question 9

What’s the difference between an informal usability review and an expert usability review?

Accepted Answer

B

Explanation: The fundamental difference between an informal usability review and an expert usability review is the required qualification of the reviewers. An expert review, such as a heuristic evaluation, mandates that the reviewers are specialists in usability, human-computer interaction (HCI), and user experience. These experts use established principles (heuristics) to systematically identify potential usability issues. In contrast, an informal review does not require participants to possess formal usability qualifications. It can be conducted by project team members, stakeholders, or peers to gather quick feedback, making it a less rigorous but often faster evaluation method.

Question 10

Which of the following is the correct distinction between formative and summative usability evaluation?

Accepted Answer

C

Explanation: The primary distinction between formative and summative usability evaluation lies in their goals and timing within the development lifecycle. Formative evaluation is conducted during the design and development process. Its main purpose is to identify usability issues and provide feedback to "form" or improve the product. In contrast, summative evaluation is typically performed at the end of a development cycle on a finished or near-finished product. Its goal is to "sum up" or assess the overall usability, often by measuring it against predefined benchmarks or competitors, thereby judging the final outcome.

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