1. 1 SY DE 542 An Atypical Example of EID March 21, 2005 R. Chow Email: chow@mie.utoronto.cachow@mie.utoronto.ca

2. 2 The Problem with Gambling Estimated # of problem gamblers –In US: 5,500,000 (1999 figures) –In Canada : 600,000 – 1,200,000 (1996 figures) Key factor: access to gambling opportunities –Consider new casinos along Canada-US border –Online casinos EID to reduce problem gambling –542 project by Pascale Proulx –Specific focus: Video poker

3. 3 Problem Gambling Underestimate losses, chances of losing Over-estimate chances of winning (back) Results: –Play longer … Lose more –Forget amount lost –Forget time played

4. 4 Why EID? Help user develop accurate mental model –odds of winning and losing Reduce memory load –Playing time –Amount won / lost

5. 5 Functional Purpose House: –Make Profit Client: –90% say “Entertainment” –84% say “Win Money” (Burns and Proulx, 2002)

6. 6 Abstract Function Money Flow (House  Client) “Entertainment Value” –Modelled as a Fun / Cost ratio –Non-problem Gamblers: Fun / Cost > 1 –Problem Gamblers: Fun / Cost < 1 (i.e., cost increases over time, fun decreases over time) (Burns and Proulx, 2002)

7. 7 Generalized Function Processes of: –Betting –Generating Results –Giving payoffs (Burns and Proulx, 2002)

8. 8 Physical Function Money, Cards, Chips … Physical Form Appearance and location of money, cards, chips … (Burns and Proulx, 2002)

9. 9 Implementations Setting the context – Money and Value (AF) (Burns and Proulx, 2002)

10. 10 Implementations Metaphor of Cool vs. Dirty Dog (FP) (Burns and Proulx, 2002)

11. 11 (Burns and Proulx, 2002)