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Title: The relationship between visual interface aesthetics, task performance, and preference
Author: Salimun, Carolyn
ISNI:       0000 0004 2736 674X
Awarding Body: University of Glasgow
Current Institution: University of Glasgow
Date of Award: 2013
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The purpose of this thesis was to develop a conceptual framework that shows the relationship between aesthetics, performance, and preference in computer interface design. To investigate this relationship, the thesis focused on investigating the effect of layout aesthetics on visual search performance and preference. This thesis begins with a literature review of related work followed by the rationale for conducting this research, in particular, defining what it meant by visual aesthetics in the context of interface design. Chapter 4 focused on investigating the effect of layout aesthetics on performance and preference. The results show that response time performance and preference increased with increasing aesthetic level. Preference and performance were found to be highly correlated. Chapter 5 focused on investigating users’ layout preference when they were not involved with a performance-based task. The results showed, surprisingly, that preference was highest with a “moderate” level of layout aesthetics and lowest with “high” and “low” levels of aesthetics. Chapter 6 focused on investigating visual effort by measuring eye movement pattern during task performance. The results showed that visual effort increased with a decreasing level of aesthetics. Chapter 7 extended the experiment in Chapter 4 using more “ecologically valid” stimuli. The results essentially replicated the results produced in Chapter 4. Chapter 8 focused on investigating the relationship between so-called “classical” aesthetics and background “expressive” aesthetics. The results showed that task performance using classical aesthetics was highest with high and low levels of aesthetics and worst with medium levels of aesthetics. Performance with expressive aesthetics increased with decreasing aesthetic levels. This thesis concludes with a conceptual framework for aesthetic design to help interface designers design interfaces that look aesthetically pleasing while at the same time supporting good task performance.
Supervisor: Not available Sponsor: Not available
Qualification Name: Thesis (Ph.D.) Qualification Level: Doctoral
EThOS ID:  DOI: Not available
Keywords: QA75 Electronic computers. Computer science