Designing usable Graphical User Interfaces (GUIs) is a complex process and requires at least two things: knowledge of known GUI design principles and guidelines, and knowledge of structured methods for achieving usability.The purpose of writing this thesis was to investigate whether a GUI standard increases a program’s usability or not. In many cases, people who take part in GUI decisions do not consider following a standard and the decisions are often based on what is best for them. Consequently, in most of the cases, programs turn out to be inconsistent and less usable. But following a GUI standard does not necessarily guarantee usability.To carry out the investigation, the GUI of a program was deliberately manipulated. Apart from the original one, two more versions were created; one strictly according to the Microsoft Standard, and one that among other things violated the standard. To be able to compare the three GUI versions…
Contents
1. INTRODUCTION
1.1 BACKGROUND
1.2 CONTEXT
1.3 PURPOSE
1.4 GOALS
1.5 THE AUDIENCE
1.6 DELIMITATIONS
1.7 HYPOTHESIS
1.7.1 Input Variables
1.7.2 Output Variables
1.8 RESEARCH QUESTIONS
2. DESIGN OF USABLE GUIS
2.1 GUI STANDARD
2.3 USABILITY
3. USABILITY TESTING
3.1 PLANNING AND PREPARING
3.1.1 Choice of Test Program
3.1.2 Users Profiles
3.1.2.1. Novice Users
3.1.2.2 Homogeneous Test Group
3.1.3 How to Measure Usability?
3.1.4 Preparing Test Materials
3.1.4.1 GUI Version 1
3.1.4.2 GUI Version 2
3.1.4.3 GUI Version 3
3.1.5 Test Plan
3.2 CONDUCTING USABILITY TESTING
3.2.1 Observations
3.2.3 Interviews
4. RESULT OF USABILITY TESTING
4.1 DEMOGRAPHIC QUESTIONNAIRE
4.2 OBSERVATIONS
4.2.1 GUI Version 1:
4.2.2 GUI Version 2:
4.2.3 GUI Version 3:
4.3 INTERVIEWS
4.3.4 Summary
5. ANALYSIS OF RESULT
5.1 EVALUATION OF USABILITY FACTORS
5.1.1 Learnability
5.1.2 Speed of Performance
5.1.3 Incidence of Errors
5.1.4 Subjective Satisfaction
5.2 CONCLUSION
6. DISCUSSION
6.1 FUTURE RESEARCH
7. LITERATURE
7.1 REFERENCE LITERATURE
7.2 OTHER LITERATURE
8. APPENDICES
Author: Hanna Sjöberg, Demet Ukus
Source: Blekinge Institute of Technology
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