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ERIC Number: ED388258
Record Type: Non-Journal
Publication Date: 1994
Pages: 7
Abstractor: N/A
Reference Count: N/A
HyperM: A Hypermedia System with Extended Question/Answer Dialogs.
Holweg, G.; Sammer, P.
Most educational software lacks either sophisticated computer assisted instruction (CAI) facilities or modern hypermedia functionality. Combining these two aspects not only increases interactivity between computer and learning persons by means of new functions such as moving dragbuttons across the screen and giving multimedia feedback, but also enhances the educational effect. This paper describes how to embed a system for question/answer dialogs into a hypermedia system and points out the resulting advantages. HyperM--a Windows-based hypermedia system, is a powerful PC-based hypermedia system that, among other things, can handle huge amounts of data without loss of performance. Based on ideas of object-oriented structures, the Q/A system consists of a number of objects, each representing a type of input as well as rules on how to judge the student's input. These objects are called interactors because they have the ability to receive user input, judge it, and act accordingly to the results of judging. A Q/A dialog consists of several interactors which are supervised by the control unit. Some points considered important for the development of the Q/A system are: flexible judging algorithms--user input must be examined for correctness by comparing the given answer with a predefined model answer; a need for several learning strategies; the usefulness of question asking algorithms, algorithms that repeatedly ask the same type of question but use different parameters and values; and the use of databases for storing Q/A dialogs, images, sounds, and films. (Contains 20 references.) (Author/MAS)
Publication Type: Reports - Descriptive; Speeches/Meeting Papers
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A