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1 Discussion Class 9 User Interfaces
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2 Levels of usability interface design functional design data and metadata computer systems and networks conceptual model
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3 Question 1: Clarifying Search (a) What is the conceptual model that the authors assume? (b) How do their four steps: formulation action review of result refinement fit into the usability model?
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4 Question 2: Formulation (a) What functions are considered under the heading "formulation"? (b) What user interface mechanisms can be used to support the "what to search for" function? (c)What are the mistakes to avoid?
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5 Question 3: Menus Shneiderman and his colleague have carried out research in specific user interface components. (a) What makes a good menu system? (b) What makes a good text input box for the user?
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7 Question 4: What is wrong with the early version of the XInquery user interface?
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8 Question 5: The paper from the National Library of Medicine described successive redesigns of a web site. (a) What were they trying to achieve? (b) Why is this difficult? (c) How successful were they? (d) What can you learn from them?
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