This thesis presents a set of principles for web-based instruction based on literature from instructional design usability engineering, and human-computer interaction. A questionnaire based on usability and instructional design attempts to show that I order to improve web-based instruction, usability and instructional design need to be taken into consideration when constructing long distance courses via the Web. The results show that usability and instructional design are dependent upon cach other in order to present an effective on-line course while simultaneously learning from it.
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