DCOM 130 Final questions & answers rated A+ 2023/2024

DCOM 130 Final>_ - correct answer Command line - opposite of GUI, open ended, relies on recall A good classification system spawns prediction in retrieval - correct answer Good advance organizers help people figure out where to find things - or mental models lend to finding EX. logo, profile About content, not about the chrome - correct answer Focus on what the user is looking for, not overdone aesthetics - signal-to-noise ratio - Function over design - Skeuomorphism has constraints, adds noise Aesthetic usability effect - correct answer Aesthetic designs are perceived as easier to use than less-aesthetic designs. Tend to dismiss usability problems AI - correct answer Artificial Intelligence - computers think for themselves - related to black box Alignment vs Area alignment - correct answer The placement of elements such that edges line up along common rows or columns, or their bodies along a common center vs. based on the area/visual weight of elements Archetypes - correct answer Found in themes of myths, characters, literature, imagery Ex) Nike products won't be advertised to be used by outlaws, they would be placed with athletes Attractiveness bias - correct answer A tendency to see attractive people as more intelligent, competent, moral, and sociable than unattractive people Can apply to objects too Augmented reality (AR) - correct answer Blends reality and digital content by placing objects right in front of people - Greater use than VR, which removes the user from the world Biometrics - correct answer Biological data such as faces and fingerprints that can be stored and used for different purposes - from unlocking a phone to the Chinese social credit system Black box - correct answer We don't understand how AI makes its choices - Millions of data points, many more than Miller's Magic Number Chunking - correct answer A technique of combining many units of information into a limited number of units or chunks, so that the information is easier to process and remember - phone number divided into 3 sections Confirmation - correct answer Making user confirm an action to prevent slips, accidental inputs Dialogue or 2 step operation Consistency - correct answer The usability of a system is improved when similar parts are expressed in similar ways Control - correct answer About of user control should correspond to their experience with the system Accommodated by different ways of accomplishing the same thing (file-save OR ⌘-s) Normal and expert mode Data bottleneck - correct answer how much can be shown (vs. perceptual bottleneck - how much can be seen) Design on a grid / four parts on a grid - correct answer create structure, consistency, flow, visual hierarchy Columns - divide into equal columns and decide what elements take up what Gutters - gaps between columns Flowlines - horizontal alignment of elements Margins - negative spaces on edges entry point - correct answer A point of physical or attentional entry into a design Unfolds as the user interacts with it - Minimal Barriers Barriers should not encumber entry points - Points of Prospect = wayfinding orientation and route decision - Progressive Lures Lures should be used to attract and pull people through the entry point Observation vs Inference vs opinion - correct answer facial recognition - correct answer Computers with cameras or other sensors can recognize and differentiate people by their face Fitt's Law (3 parts) - correct answer The time required to move to a target is a function of the target size and distance to the target 3 types of movement - Ballistic (initial quick movement) Homing (fine adjustment) Acquiring (resting position over target) Five hat racks - correct answer LATCH, Location, Alphabetical, Time, Category, Hierarchy Five usability attributes - correct answer Five usability metrics - correct answer Flexibility-Usability Tradeoff - correct answer As the flexibility of a system increases, the usability of the system decreases. More capable tv remotes are harder to use Forgiveness - correct answer Minimize consequences of error Good affordances - Physical characteristic of a design that influences correct usage - like an object that is shaped to only fit in the correct hole Reversibility of actions - one or more actions can be reversed if an error is made - Undo button