Introduction to Human Computer Interaction
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Questions and Answers

Which of the following factors is NOT mentioned as influencing Human Computer Interaction (HCI)?

  • Culture
  • Other factors
  • Ever-changing standards
  • Technology advancement (correct)

    • Good technology is always defined by its usability alone.

    False

    What does HCI study focus on concerning user performance?

    The interaction between humans and machines in the context of a system.

    The Ergonomics Research Society, established in _____, focused on the physical characteristics of machines and systems.

    <p>1949</p> Signup and view all the answers

    Which technology is known for its excellent video recording features, as mentioned for comparison?

    <p>Canon</p> Signup and view all the answers

    HCI is solely about improving technology without considering user experience.

    <p>False</p> Signup and view all the answers

    Name one example of a distinguishing factor between good and bad technology.

    <p>Purpose or usability.</p> Signup and view all the answers

    Match the technologies with their respective features:

    <p>Nikon = Ergonomic design Canon = Video recording features Apple = Security features Android = Versatility</p> Signup and view all the answers

    What is the primary goal of User Experience design?

    <p>To have a universal standard for designing products</p> Signup and view all the answers

    User Experience is only concerned with technology-related products.

    <p>False</p> Signup and view all the answers

    What does the term 'affordances' refer to in User Interface design?

    <p>The perceived properties of an artifact that provide clues for possible usage.</p> Signup and view all the answers

    Usability in design primarily focuses on how easy or __________ it is to use a product.

    <p>pleasing</p> Signup and view all the answers

    Match the types of user interfaces with their senses:

    <p>Vision = Monitors, projectors, screens Hearing = Microphones, speakers Haptic = Buttons, touch screens Psychological = User's emotional response</p> Signup and view all the answers

    Which of the following questions is related to User Experience?

    <p>What makes you repeatedly do something?</p> Signup and view all the answers

    You push a car door handle to open it.

    <p>False</p> Signup and view all the answers

    In which decade did the interest in User Experience gain momentum?

    <p>1950s</p> Signup and view all the answers

    Which of the following is NOT one of the six design principles outlined by Donald Norman?

    <p>Aesthetics</p> Signup and view all the answers

    Usability testing only concerns measuring the user's satisfaction with a product.

    <p>False</p> Signup and view all the answers

    What term describes the restrictions to the kind of interactions possible with a device?

    <p>Constraints</p> Signup and view all the answers

    The principle that refers to the relationship between functional and spatial layout is called ______.

    <p>Mappings</p> Signup and view all the answers

    Match the types of usability constraints with their definitions:

    <p>Physical = Constrain possible operations Semantic = Rely on meanings of situations to control actions Cultural = Accepted cultural conventions that control actions Logical = Relationship between functional and spatial layout and the things they affect</p> Signup and view all the answers

    Which design principle focuses on how a product indicates its current status to the user?

    <p>Feedback</p> Signup and view all the answers

    The principle of visibility deals with whether the user can see the controls of a device.

    <p>True</p> Signup and view all the answers

    Why are constraints important in user-centered design?

    <p>They reduce chances of error and focus user attention on tasks.</p> Signup and view all the answers

    Which of the following is NOT a type of usability metric?

    <p>Cognitive-based</p> Signup and view all the answers

    Mental models help users understand systems and predict their effects.

    <p>True</p> Signup and view all the answers

    What is feedback in the context of usability?

    <p>Information about the effects of user’s actions.</p> Signup and view all the answers

    Design provides strong clues for __________.

    <p>usage</p> Signup and view all the answers

    Match the following terms with their definitions:

    <p>Feedback = Provides information about user actions Visibility = Indicates possible user actions Mappings = Relationship between controls and effects on a system Usability Metrics = Methods to evaluate user interaction</p> Signup and view all the answers

    Why might designers be hesitant to try new ideas?

    <p>Fear of having their ideas stolen</p> Signup and view all the answers

    Business design is separate from technology design.

    <p>False</p> Signup and view all the answers

    What is the primary purpose of usability metrics?

    <p>To evaluate user interaction with a system.</p> Signup and view all the answers

    What is a possible outcome of a usability issue?

    <p>An error that prevents task completion</p> Signup and view all the answers

    Efficiency is primarily concerned with the amount of effort required to complete a task.

    <p>True</p> Signup and view all the answers

    What is the maximum acceptable error rate determined by?

    <p>Single errors measured by frequency and error rate.</p> Signup and view all the answers

    Errors that are assumed to be correct but are actually not are referred to as __________ errors.

    <p>serious</p> Signup and view all the answers

    Which of the following factors indicates that an error has significant implications?

    <p>High cost due to failure</p> Signup and view all the answers

    Match the types of errors with their descriptions:

    <p>Trivial errors = Minor mistakes that have little impact Moderate errors = Mistakes that can hamper user experience Serious errors = Errors that prevent task completion</p> Signup and view all the answers

    What design approach is used to tackle complicated problems in product development?

    <p>Design Thinking</p> Signup and view all the answers

    Multiple errors are assessed only by the number of times they occur.

    <p>False</p> Signup and view all the answers

    What does the ratio of success over time measure?

    <p>Efficiency in task performance</p> Signup and view all the answers

    Gathering the user's preferences is an essential step in the 'Empathize' phase.

    <p>True</p> Signup and view all the answers

    What should efficiency be defined by?

    <p>Counting successful tasks</p> Signup and view all the answers

    The key in the 'Empathize' phase is to ___ assume.

    <p>not</p> Signup and view all the answers

    Match the terms with their definitions:

    <p>Learnability = Time and effort needed to become proficient Efficiency = Ratio of success over time Empathize = Understanding user preferences Define = Focus on the real problem to solve</p> Signup and view all the answers

    What is tracked to measure learnability?

    <p>Time-on-task and errors</p> Signup and view all the answers

    Task completion rate is irrelevant to measuring efficiency.

    <p>False</p> Signup and view all the answers

    What is a trial in the context of learnability?

    <p>A single attempt made by a user to complete a task.</p> Signup and view all the answers

    Study Notes

    Human Computer Interaction (HCI) Introduction

    • Interest in building more effective weapons led to studying humans and machines.
    • Ergonomics Research Society (1949) focused on the physical characteristics of machines and systems, and how they affected human performance.
    • HCI includes the computer as the machine.
    • HCI tries to answer questions about technology, and how to evaluate it.
      • What makes a good and bad technology?
      • How can good technology be built?
      • How can good technology be validated?
    • Good and bad technology depend on perspective. Some technologies are designed for a specific purpose.
      • Examples include Nikon's ergonomic design, vs Canon's video recording features, and Apple's security vs Android's versatility.

    Human Computer Interaction Components

    • HCI is composed of computers, humans, and tasks.
    • There is no unified theory due to culture, changing standards, and other factors.

    User Experience vs. User Interface

    • User Experience (UX) is the overall experience of using a product, like a website or app. How easy and enjoyable is it to use?
    • User Experience encompasses all aspects of the user's interaction with a company, its services, and products.
      • Example: Why are people addicted to Facebook? What makes them repeatedly do something?
    • User Interface (UI) is the space where interactions between users and machines occur.
      • Computers have three UI interfaces for different senses: vision, hearing, and touch. (monitors, projectors, screens, VRs; microphones, speakers, headsets; buttons, pens, touchscreens.)

    Usability

    • Usability is a major but abstract component of HCI. It involves the ease and use of objects that humans interact with.
      • Usability is subjective and measured through testing.
      • Techniques used include user-centered interaction design.

    Design Principles (Donald Norman)

    • Affordances: How to use something.
    • Constraints: Why limitations exist.
    • Conceptual models: Previous experience.
    • Mappings: Where something is.
    • Visibility: Can we see it?
    • Feedback: What is the system doing?

    Usability Metrics

    • Different types include performance-based, issue-based, self-reported, and behavioral/psychological.
    • Performance metrics determine the magnitude of a specific usability issue.
      • How many people are likely to encounter a problem.
    • Common examples include task success and time on task.

    Design Thinking

    • A non-linear process for tackling complex problems in product development.
    • User-centric approach.
    • Aims for practical and logical innovation.
    • Steps include empathize, define, ideate, prototype, and test.

    Module Summary

    • HCI focuses on creating good design.
    • It is composed of humans, computers, and tasks.
    • UX is different from UI.
    • Usability is an important component and can be measured through metrics.

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    Related Documents

    Human Computer Interaction PDF

    Description

    Explore the fundamentals of Human Computer Interaction (HCI), which examines how humans interact with computers and technology. This quiz covers key concepts such as ergonomics, user interface, and user experience, highlighting the evolving nature of technology assessment. Understand the components of HCI including tasks, users, and systems.

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