Final review (see advanced topics for rest of info) Flashcards
Define: UX measure
A user experience characteristic to be measured with regard to using an interaction design of interest
Define: Benchmark task
A description of a task performed by a participant so that UX measures can be obtained and compared to a baseline value
Define: Quantitative
Numeric data regarding the user experience
Example of quantitative
Number of errors made by a user during a benchmark task
Pro of quantitative
Easy to process and analzye
Con of quantitative
Provides limited information
Define: Qualitative
Non-numeric, descriptive data describing the user experience
Example of qualitative
A user’s verbal recount of thoughts and actions taken during a benchmark task
Pro of qualitative
Provides rich information
Con of qualitative
Difficult to process and analyze
Define: Objective
Data observed directly by an evaluator or an observer
Example of objective
Number of errors made by a user during a task
Pro of objective
Does not vary among observers
Con of objective
Does not provide insight to the user’s opinion
Define: Subjective
Data that represents an opinion, judgment, or other personally based feedback
Example of subjective
A user’s satisfaction rating for a user interface
Pro of subjective
Provides insight to the user’s opinion
Con of subjective
Varies from person to person
List objective UX measures
Initial performance
Long-term performance
Learnability
Retainability
Advanced feature usage
List subjective UX measures
First impression
Long-term user satisfaction
List aspects to UX evaluation
Formative vs summative
Formal vs informal
Rapid vs rigorous
Analytic vs empirical
Three broad capabilities of the human
Perception
Cognition
Motor skills
Define: Perception
Receiving sensory stimuli from the environment
Define: Cognition
Processing stimuli and memories to understand the environment
Define: Motor skills
Physically executing actions selected by cognition
List traditional senses
Sight
Hearing
Touch
Smell
Tasee
List other non-traditional senses
Vestibular
Proprioception
Thermoception
Chronoception
Define: Vestibular
Sense of balance and inertia
Define: Proprioception
Sense of the relative positions of the parts of the body
Define: Thermoception
Sense of temperature
Define: Chronoception
Sense of time
What are the ways the human perception is biased?
Past and our experiences
Present and the current context
Future and our goals
Define: Gestalt principles
Visual phenomena optimized to see structure
Examples of gestalt principle
Whole shapes
Figures
Objects
How is vision optimized?
For contrast
Where do you have high resolution for vision?
Fovea (center)
Where do you have low resolution for vision?
Periphery
List the depth queues
Pictorial
Oculomotor
Motion Parallax
Stereopsis
What are pictorial queues?
Based on static images
What are oculomotor queues?
Derived from muscular tension in the eyes
What is motion parallax?
When objects appear to move relative to the viewer
What is stereopsis?
Caused by binocular disparity
What are the four aspects of cognition?
Memory
Attention
Recognition and recall
Learning
What is short-term memory?
Responsible for retaining information for intervals from a fraction of a second to a few minutes
What is long-term memory?
Responsible for retaining information over long periods of time
What are the types of memories?
Semantic
Episodic
Procedural
What is semantic memory?
Memory regarding facts and relationships
What is episodic memory?
Memory records of past events
What is procedural memory?
Memory of action sequences
What is working memory?
Our current attention and prior knowledge
When is leaning faster?
Practice is frequent, regular, and precise
Operation is task focused, simple and consistent
Vocabulary is task focused, familiar, and consistent
Define: Fitts’ Law
Pointing time depends on distance and width of the target
Define: Steering Law
Pointing time depends on distance and width of the path
What are the categories of design guidelines?
Eight golden rules
Providing indications
Organizing the user interface
Displaying information
Directing attention
What are the eight golden rules?
Consistency
Universal usability
Informative feedback
Dialogs to yield closure
Prevent errors
Easy reversal of actions
Internal locus of control
Reduce short-term memory load
What are the types of indications?
Modes
Reverse actions
Irrelevant actions
Shortcuts
Requirements
Beginning tasks
User progress
System progress
Task completion
Exits
What are the goals of organizing the interface?
Capitalize on patterns
Group similar elements
Reduce memory load
Provide multiple views
Provide flexibility
List the information concerns
Consistency
Formatting
Colors
Legibility
Understandability
Compatibility
Overload
What are the methods of directing attention?
Intensity
Marking
Size
Font
Color
Blinking
Audio
What are the uses of AR and VR?
Training
Education
Rehabilitation
Therapy
Research
Entertainment
Design
Visualization
Define: Interaction fidelity
Objective degree of exactness with which real-world interactions can be reproduced in an interactive system
How is interaction fidelity commonly thought of?
Continuum
What are three broad aspects of interaction fidelity factors?
Biomechanical symmetry
Control symmetry
System appropriateness
What are interaction fidelity factors based on?
Framework for interaction fidelity analysis (FIFA)
Define: Biomechanical symmetry
Objective degree of exactness with which real-world body movements for a task are reproduced through interaction to successfully complete the task in a virtual environment
What are the three components of biomechanical symmetry?
Kinematic symmetry
Kinetic symmetry
Anthropometric symmetry
Define: Control symmetry
Objective degree of exactness with which control in a real-world task is provided through interaction in a virtual environment
What are the three components of control symmetry?
Dimensional symmetry
Transfer function symmetry
Termination symmetry
Define: System appropriateness
How suitable the system is for implementing a particular interaction in a virtual environment
What are the four components of system appropriateness?
Input accuracy
Input precision
Latency
Form factor
