CS147-2009-DirectManipulation

CS147-2009-DirectManipulation - stanford hci group...

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stanford hci group http:// cs 147.stanford.edu Scott Klemmer Autumn 2009 Direct Manipulation Thursday, October 1, 2009
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How might this measuring cup be improved? Thursday, October 1, 2009
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Thursday, October 1, 2009
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Thursday, October 1, 2009
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Thursday, October 1, 2009
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Thursday, October 1, 2009
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How do people learn interactive systems? What makes an interface easy or hard? Why do people make errors? What makes an interface “natural” Thursday, October 1, 2009
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Handles Thursday, October 1, 2009 Begin with breaking glass Two kinds of errors: slips & mistakes
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Examples (Bad) : Old Refrigerator Problem: freezer too cold, but fresh food just right freezer fresh food Source: Norman, Don. The Design of Everyday Things . Currency, 1990. James Landay, CS160 UC Berkeley, Mental Models Lecture. Thursday, October 1, 2009
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Example (bad): Refrigerator Controls What is your conceptual model? A B C D E 7 6 5 4 3 Normal Settings C and 4 Colder Fresh Food C and 5-6 Coldest Fresh Food B and 7 Colder Freezer D and 6-7 Warmer Fresh Food C and 3-1 OFF (both) 0 Source: Norman, Don. The Design of Everyday Things . Currency, 1990. James Landay, CS160 UC Berkeley, Mental Models Lecture. Thursday, October 1, 2009
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Example (bad): Most Likely Conceptual Model i.e., independent controls A B C D E cooling unit 7 6 5 4 3 cooling unit Source: Norman, Don. The Design of Everyday Things . Currency, 1990. James Landay, CS160 UC Berkeley, Mental Models Lecture. Thursday, October 1, 2009
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Example (bad): Actual Conceptual Model A B C D E 7 6 5 4 3 cooling unit Source: Norman, Don. The Design of Everyday Things . Currency, 1990. James Landay, CS160 UC Berkeley, Mental Models Lecture. Thursday, October 1, 2009
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Conceptual Model Now can you fx the problem? A B C D E 7 6 5 4 3 cooling unit Source: Norman, Don. The Design oF Everyday Things . Currency, 1990. James Landay, CS160 UC Berkeley, Mental Models Lecture. Thursday, October 1, 2009
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CS147-2009-DirectManipulation - stanford hci group...

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