Category Archives: Theoretical Foundations

Conceptual model

CONCEPTUAL MODELS & USER-CENTERED DESIGN Years ago, I championed “User-Centered System Design,” based upon the point that designers had to focus their attention upon the users of their systems. I diagrammed the interaction between designer and user as a triad: The designer’s … Continue reading

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Mental model

Summary: What users believe they know about a UI strongly impacts how they use it. Mismatched mental models are common, especially with designs that try something new. Mental models are one of the most important concepts in human–computer interaction (HCI). … Continue reading

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Recall vs recognition

Two main ways we access memory: recognition and recall. Recognition: when provided with the information in memory, just double check that we’ve seen it before. includes: feeling of familiarity, matching, multiple. choice, True/False on exams, recognizing someone you know… Recall: … Continue reading

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Memory

In psychology, memory is an organism’s ability to store, retain, and recall information and experiences. Traditional studies of memory began in the fields of philosophy, including techniques of artificially enhancing memory. During the late nineteenth and early twentieth century, scientists have put memory within the paradigm of cognitive psychology. In … Continue reading

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The Cognitive System

Cognitive science is the interdisciplinary scientific study of mind and its processes. It examines what cognition is, what it does and how it works. It includes research on how information is processed (in faculties such as perception, language, memory, reasoning, and emotion), represented, … Continue reading

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Lecture 3

When to collect user data Data collection for Interaction design: direct observation, indirect observation, thinkalouds, query techniques, experimental techniques Ethical practice Direct Observation: the person – who, the place – where, the thing – what Ethnography thinkalouds Questionnaire: pros and … Continue reading

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