30 Questions
What is the primary goal of usability inspection?
To find usability problems in a design
What is cognitive walkthrough?
A method to identify usability problems from a user's perspective
What is heuristic evaluation?
A method to compare products to a list of design principles
Who typically conducts heuristic evaluation?
Experts, preferably
What is the outcome of usability inspection?
A list of usability problems
What is the purpose of evaluating the severity of usability problems?
To determine the importance of addressing usability problems
What is the primary focus of the ISO 9241 standard?
Human-system interaction
Which of the following is NOT one of the principles of usability according to ISO 9241?
Customizability
Who is known for coining the term 'usability engineering'?
Jakob Nielsen
What is the title of Donald Norman's notable book on design?
The Design of Everyday Things
Who are notable for their early work in human factors and ergonomics?
Alphonse Chapanis, Wendell Garner, and Paul Fitts
What is the primary goal of a system with low error rate?
To reduce errors
What is the method of usability inspection that involves having usability specialists judge whether each dialogue element follows established usability principles?
Heuristics
What is the purpose of providing feedback within a reasonable amount of time?
To keep users informed about what is going on
Why should the design speak the users' language?
To use words, phrases, and concepts familiar to the user
What is the purpose of having a clearly marked "emergency exit"?
To allow users to leave the unwanted action
Why should users not have to wonder whether different words, situations, or actions mean the same thing?
To follow platform and industry conventions
What is the main goal of the usability heuristic that states the design should keep users informed about what is going on?
To provide feedback within a reasonable amount of time
What is the primary objective of user testing?
To identify areas where users struggle with the interface
What is the definition of the interface in ergonomics?
The point of interaction between a user and a system
What is the primary goal of an efficient interface?
To allow users to achieve their goals with minimal steps and wasted effort
What is the purpose of observing users during user testing?
To identify areas where users succeed and have difficulties with the interface
What is the characteristic of a learnable interface?
It is easy for users to understand and use, with minimal training required
What is the primary difference between user testing and usability testing?
User testing is a type of usability testing, but they are often used interchangeably
What is the category for kids who are late in meeting developmental milestones like walking and talking?
Developmental Delay
What category includes a range of hearing issues that can be permanent or temporary?
Hearing Impairment
What is the category for kids with below-average intellectual ability, such as those with Down syndrome?
Intellectual Disabilities
What category is used when the combination of disabilities requires a highly specialized approach?
Multiple Disabilities
What category includes anxiety disorder, bipolar disorder, and oppositional defiant disorder?
Emotional Disturbance
What category covers issues with bones, joints, and muscles?
Orthopedic Impairment
Study Notes
Usability Theory and Evaluation
- Usability inspection is a generic name for a set of methods that aim to find usability problems in a design.
- It involves evaluators inspecting a user interface to identify issues.
- Heuristic evaluation is a usability evaluation method that compares a product to a list of design principles (heuristics) to identify where the product does not follow those principles.
10 Usability Heuristics
- Keep users informed about what is going on, through appropriate feedback within a reasonable amount of time.
- Speak the users' language, and avoid internal jargon.
- Prevent errors from happening, and provide a "clearly marked exit" for users to leave unwanted actions.
- Follow platform and industry conventions to avoid confusion.
Methods of Usability Inspection
- Cognitive walkthrough: evaluators work through a series of tasks and ask questions from the user's perspective.
- Heuristic evaluation: comparing a product to a list of design principles (heuristics) to identify where the product does not follow those principles.
User Testing
- Moderate the test, perform user testing, and observe what users do to identify difficulties with the user interface.
The Interface and Usability Process
- The interface refers to the point of interaction between a user and a system.
- The interface should be efficient, effective, learnable, and provide excellent usability and user engagement.
ISO 9241
- An international standard that provides a framework for understanding usability in the context of human-system interaction.
Pioneers of Usability Theory
- Donald Norman: known for his books on design, especially "The Design of Everyday Things".
- Jakob Nielsen: a usability consultant known for his work on user interface design and for coining the term "usability engineering".
- Alphonse Chapanis, Wendell Garner, and Paul Fitts: notable for their early work in human factors and ergonomics.
Types of Disabilities
- Dyslexia, Dyscalculia, Written expression disorder
- Speech or Language Impairment
- Other Health Impairment (ADHD)
- Autism
- Intellectual Disabilities
- Emotional Disturbance
- Developmental Delay
- Multiple Disabilities
- Hearing Impairment
- Orthopedic Impairment
This quiz covers the ISO 9241 standard, which focuses on usability in human-system interaction, including error reduction, learnability, and user satisfaction. Test your knowledge of this important concept in industrial engineering.
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