A Comparison of Human-Computer Interfaces in Air Force Organizations
AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH SCHOOL OF SYSTEMS AND LOGISTICS
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This thesis investigated differences in organizational efficiency and effectiveness for users of graphical user interfaces and text-based interfaces on personal computers in Air Forces offices. Areas of interest included amount of time required to learn the basic system, amount of time required to learn new application, users ratings of user-friendliness, users perceptions of the extent that their system help them perform in their job, the number of software packages used on the job by users of each system, user satisfaction, responsible authorities ratings of quality of output, and the relationship between user job experience level and interface used on the job. A literature review revealed no similar studies within the Department of Defense to date. Two populations across two organizations were identified for survey administration--users of graphical user interfaces and users of text-based interfaces. A total of 700 surveys were out with 454 returned for a response rate of 64.9. The results of the study indicated that for the organizations surveyed, graphical user interfaces offer significant advantages in each of the areas investigated. Finally, the results of the study revealed that less experienced users tend to use graphical interfaces over text-based systems in greater numbers while civilian users were more likely to use text-based systems.
- Human Factors Engineering and Man Machine Systems