1 / 25

CSC 8570 -- USI

CSC 8570 -- USI. Class Meeting 5 February 10, 2009. Opening Questions. Who among you has read at least three Harry Potter books? Who among you is a Sudoku puzzle addict? Or solver? What is a “natural algorithm”? What is the pattern and hidden meaning in the research team names?.

akamu
Download Presentation

CSC 8570 -- USI

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. CSC 8570 -- USI Class Meeting 5 February 10, 2009

  2. Opening Questions • Who among you has read at least three Harry Potter books? • Who among you is a Sudoku puzzle addict? Or solver? • What is a “natural algorithm”? • What is the pattern and hidden meaning in the research team names?

  3. Research Project • Short presentation • One spokesperson • Five minutes • Hypotheses, variables, initial experimental design • Questions and comments from the audience

  4. Research Teams • Aspen: Chris, Jon, Matt • Bailey: Andrew, Katie, Joseph • Conifer: Lindsay, Nareg, Nawar • Durango: Alvin, Scott, Tony • Estes Park: Andrew, Anton, Keith

  5. Research Project Issues • Add to bibliography – goal is at least 15 references • Design experiment • Create experimental tools • Complete IRB form • Start writing first two sections • Dates • IRB form finished no later than 2/24 • Progress Report 1 due 3/10

  6. Summary of Some Ideas • User goals • Mental models • GUEPs • Cognitive dimensions

  7. User Goals Based on last week’s discussion and other sources, here’s a list of user goals. Users want systems that: • Are powerful, meaning fast and efficient • Have proper functionality

  8. User Goals (2) • Minimize the possibility for (tragic) errors • Allow easy recovery from misdirected actions • Are easily learned and easily relearned • Fit a cognitive model based on past experience

  9. User Goals (3) • Are easy to maintain, including set up • Are flexible • Stimulate creative problem solving • Are personally satisfying

  10. Mental Models As theories: • Constructed by humans • Based on their world experience • What they believe to be true about particular domains, devices, or systems

  11. Mental Models As problems spaces • Mental structures (ideas, concepts, virtual worlds) • Contain possible states • Searchable so that users can plan their behaviors (paths from one state to the next converging on a solution)

  12. Relating GUEPs and CDs Match the 14 cognitive dimensions to the 9 GUEPs looking for overlapping and orthogonal ideas. Summarize the results by creating a 14 by 9 array whose cell entries describe the relationship between the ith CD and the jth GUEP

  13. A Lengthy Example iPods at the ready • What is your mental model of an iPod? • What do you believe to be true about an iPod? • How would you describe the problem space associated with an iPod?

  14. iPod (2) What tasks do you want to accomplish with an iPod? • Described in high level terms • In a different context, “I want fresh tomatoes from my garden on my salad.”

  15. iPod (3) What operators are available? • Physical keys or widgets • Virtual widgets on the interface

  16. iPod (4) What notation do we use for widget interaction? • Do we need to expand Card & Moran or Raskin & Beck?

  17. iPod (3) Preparing for task analysis • Tasks vs. goals • Hierarchical task analysis vs. GOMS • ConcurTaskTrees • http://giove.cnuce.cnr.it/ctte.html

  18. ConcurTaskTreesTask Types

  19. Unary Operators Icon Description Syntax * Iterative T1 * [ ] Optional [ T1 ] Connection T1 ConcurTaskTreesOperators

  20. Synthesizing Edge and Blackwell Referring to your concept map: • What is its structure? • What is its shape? • What is its top-level concept?

  21. Leave Behind • Concept map of the Edge and Blackwell paper

  22. Next Time • Continue work on research project, completing experimental material and IRB form • Catch up on reading • Button Exercise (see below)

  23. Button Exercise For your assigned two buttons on Windows Explorer, determine for each • Its syntax (hover, click, drag, etc.) • Its semantics (what happens for each kind of syntax) • Which cognitive dimensions and which GUEPs its behavior exemplifies. Hand in your written report next time.

  24. Back Forward Search Folders Views Go Name Size Type Date modified X (right of Folders) ↓ (next to dialog box) View File Tools Button Assignment

  25. Research Team Meetings

More Related