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Flashcards

HumanComputerINteractionAMIA22

Michael Riben HealthInformationSystems Board Exam English 40 cards

HumanComputerINteractionAMIA22

Cards in this deck (40)

  1. 1name the predominate model for HCIGOMS = goals, operators, methods and Selection
    used to benchmark / compare efficiency of interfaces and estimate cost savings associate with increased user performance
  2. 2describe the Hick-Hyman Lawuser response time (RT) is function of # of possible responses --> hierarchical menus, finding correct option
    RT = b*log2(n)
  3. 3What is Keystroke-level model (KLM)GOMS model looking at keystrokes =
    time to task completion = Sum of keystroking + piinting+ homing+ drawing+mental operation(thinking)+system response operator (waiting)--> use this to determine what is most amenable to short cut or hot key!
  4. 4what is Fitt's law?time to track to an object with a cursor is a function ( Index of difficulty (ID)) of distance (D) traveled and (w) width of target
    ID = log2(2D/W)
  5. 5What is Buxtons Three State Model of Graphical input?Descriptive model for HCI -exhaustive description of states and transitions of using a mouse
  6. 6WHat is the descriptive model called Guiards model of bimanual skill?hands are not used equally= left handed folks have trouble with modern 101 keyboards, certain keys are only on left side (ie esc, ctrl, tab, fn) putting left handed people at disadvantage
    acknowledge buttons are on right resulting in more mouse travel and erros for lefties
  7. 7What are the three major categories of usability evaluationTesting
    Inspection
    Inquiry
  8. 8Name 4 techniques for Testing system usability ?Coaching
    Thinking aloud
    Eye-tracking
    performance measurement
  9. 9what are 2 inspection useability techniques?cognitive walkthrough
    Heuristic evlauation
  10. 10what are inquiry methods of evaluation of user interactionfield observation
    focus groups/interviews
    surveys
    usage logs
  11. 11what is the coaching method of usability testing good for identifying?training and documentation needs
  12. 12name examples of performance measurements in usability testing?Task completion time/rate
    Recovery rate when making misteps
    Failure rates - unable to complete task
    frequent and never used features
    which pathway on multi possible pathways do users chose and why
  13. 13what is the Nasa Task Load index (NASA -TLX)survey, 6 domains, 7 point scale each
    Mental demand, physical demand, temporal demand, performance, effort and frustration level
  14. 14what is Discount Usability EngineeringHCI evaluation that does not require large # of people, or big budget described by Jakob Neilsen
    5 testers- modified testing and inspection
    modified thinkalout , heuristic,
    low fidelity prototypes -rapid iterations
  15. 15What are Wireframes/low fidelity protoytpe and why are they good?can gather feedback without actually coding the app. low cost to identify errors, can be paper based
  16. 16The formal definition of Wireframe?prototype used to suggest basic structure of a user interface and relationship btw pages, focuses on user, not programming and can act as blueprint for design
  17. 17what is NIST 2012 Usability evaluation recommendations?1) EHR Application Analysis
    2) EHR User interface Expert review
    3) User Interface Validation Test
  18. 18What is cognitive informatics?study of human processing in healthcare decision making -
    National Center for Cognitive Informatics and Decision MAking in Healthcare - UT
  19. 19Name the software that is used for UseabilityTURF
  20. 20What are Safety Enhanced Design BriefsDesign guidelines fro ehr use cases --> effective color, table design, reducing wrong patient selection errors, results management, medicationa and allergy lists, cds, eprescribing, medication/problem reconcillation, CPOE
  21. 21Who is Edward Tufte ?writes about the visual display of information - i.e. quantitative information,
  22. 22What is data visualization?field that deals with graphical representation of data and information
  23. 23What is the take-away of data visualization?How you represent data can influence how you perceive and comprehend data - change from cognitive to visual perception task
  24. 24List the type of visualizations ?sparkline, sankey diagram, heat map, mekko chart, treemap, geospatial and small multiples
  25. 25what type of diagram is thissparkline = small line chart without axes, to show trends usuallywhat type of diagram is this
  26. 26what is this diagram typeSankey Diagram - flow chart in which width of the lines conveys information about amount and branches indicate additive/subtractive eventswhat is this diagram type
  27. 27what is this type of visualizationHeat MAp - saturation conveys content of variable overlaid on table, map or chartwhat is this type of visualization
  28. 28What is this type of diagram?MEKKO Chart - barchart where both axis encode an attribute (width of bar and height of bar each have meaningWhat is this type of diagram?
  29. 29What is this type of diagramTreeMap - shows relationship btw parts to a who as a series of grouped boxesWhat is this type of diagram
  30. 30what is this type of diagramGeospatial map - tabular data is visualized on a mapwhat is this type of diagram
  31. 31what is this type of diagram ?small multiples - Tufte invented, - comparison btw small data visualizationswhat is this type of diagram ?
  32. 32as opposed to the real world, aMental Model is?clinicians understanding of a real world concept and how it influences reality, actions, and choices
  33. 33where does the IT world fit with the real world and their mental model?it sits int he middle of the two
  34. 34What does Koppel think leads to useability errors?Attributed to mismatch between the three models - Real Wold, IT, and Mental Model
  35. 35What is a Type 1 error in koppels usabilty error theory?IT is too course - i..e not enough codes for correct granularity
  36. 36what is type 2 err in koppels usability error theory?IT is too fine - i.e. ICD 11 is too granular , more than the mental model
  37. 37What is a type III error in Koppels USability error theory?IT systems to account for reality - i.e. no wifi where computer is to do data entry
  38. 38What is a type IV usability error in Koppels theory?Conflicting mental models - primary care and specialist think about a disease differently
  39. 39What is a Type V error in koppel's usability error theory?mental model based on false reality as represented by the IT system - vital signs are artifactual but added to the EHR automatically
  40. 40what is the purpose of a situation awareness of a projection display ( instead of alert )?take unstructured data--> find, sort, integrate, and process data to increase comprehension of the their meaning
    PErception --> comprehend --> project future status

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Board Exam HealthInformationSystems Flashcards on HumanComputerINteractionAMIA22, created by Michael Riben on 06/10/2022.
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