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HCI. Meeting 13 Thurs, October 7. Research Project. Hand in IRB form Start writing first two chapters Background, previous results Theoretical foundation, experimental design. Models, Theories, Notation. Models: Abstraction of actual system User or user parts, system, dialog Examples:
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HCI Meeting 13 Thurs, October 7
Research Project • Hand in IRB form • Start writing first two chapters • Background, previous results • Theoretical foundation, experimental design
Models, Theories, Notation Models: • Abstraction of actual system • User or user parts, system, dialog Examples: • GOMS • Locus of attention • Website as directed graph (digraph)
MTN (2) More examples: • PIE (Programs, Interpretation, Effect) • Used for understanding “undo” • ConcurTasks – Paterno, for task analysis • Cognitive dimensions – Blackwell and Green, fourteen properties Difficulties • Simplifying assumptions
MTN (3) Theories: • Captured in models • Phrased as “laws” (use laws of physics as the paradigm) • Fitts Law • Hicks Law • Information efficiency
MTN (3.1) Difficulties • Complexity of human behavior • Complexity of software systems
MTN (4) Notations: • Keystrokes – Raskin • Keystroke level actions – Card & Moran • Widget semantics -- Olsen Difficulties • Not quite accurate, e.g. slow single click, autorepeat
Next Time After Fall break • Research project: Experimental materials due Thursday, October 21 • Read: Raskin, Chapter 5 • Create: concept map, Raskin, Chapter 5