HCI final prep part 3

ohsobeezee23's version from 2016-12-21 21:06

Principles of Universal Design

Question Answer
Equitable use The design does not disadvantage or stigmatize any group of users.
Flexibility in use The design accommodates a wide range of individual preferences and abilities.
Simple, intuitive use Use of the design is easy to understand, regardless of the user’s experience, knowledge, language skills, or current concentration level.
Perceptible infoThe design communicates necessary information effectively to the user, regardless of ambient conditions or the user’s sensory abilities
Tolerance of error The design minimizes hazards and the adverse consequences of accidental or unintended actions.
Low Physical Effort The design can be used efficiently and comfortably, and with a minimum of fatigue
Size and space for approach and use Appropriate size and space is provided for approach, reach, manipulation, and use, regardless of the user’s body size, posture, or mobility

Principles of graphical excellence

Question Answer
Principles of graphical excellence 1Complex ideas presented with clarity, precision, honesty, and efficiency.
Principles of graphical excellence 2Gives viewer the greatest number of ideas in the shortest time, with the least ink in the smallest space.
Principles of graphical excellence 3Graphical excellence often found in simplicity of design and complexity of data
Bottom linehow you present the data will impact the conclusions people draw from it
Visualization pitfalls in terms of data designselect the right dimensions its pitfall is it displays irrelevant data relationships
Visualization pitfalls in terms of visual designConsider perceptual capabilities , its pitfall is that it is difficult to interpret, lead users to misinterpretation
Visualization pitfalls in terms of interface designmode of interaction with visual and data appropriate, its pitfall is poor interaction negates benefits from data and visual design
Visualization pitfalls in terms of understanding target usersVisualization design accounts for stakeholder needs and characteristics, its pitfall Mistaken assumptions of cultural norms or user abilities leads to misinterpretation


Question Answer
Define externalizationthe interaction between internal and external representations when performing cognitive tasks.
What is the function of visualizationRecord, Process, and Present information and to see the unseen
How to create a visualization1.Understand a system of related info 2.create a mapping from data to visual representation 3.Present 4.Provide methods of interacting 5.Verify the usefulness
Characteristics of visual variablesSelective, Associative, Quantitative, Order, Length
SelectiveIs a change in this variable enough to allow us to select it from a group
AssociativeIs a change in this variable enough to allow us to perceive them as a group?
QuantitativeIs there a numerical reading obtainable from changes in this variable
OrderAre changes in this variable perceived as ordered?
LengthAcross how many changes in this variable are distinctions possible?

Typical Interaction Techniques

Question Answer
Selectmark something as interesting
Exploreshow me something else
Reconfigureshow me a different arrangement
Encodeshow me a different representation
Abstract/Elaboratemore or less detail
Filtershow me something conditionally
Connectshow me related items

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