t upon physical science based technology. Presentation technology is the application of physical science based technology to the information presentation process within a behavioral science framework, which includes learning psychology, group processes, language and linguistics, communications, cybernetics, perception, and psychometrics.
The preceding definition is relevant to virtual reality systems. Jonathan Steuer (1992, pp. 73 93) at Stanford University argues that a device driven definition of virtual reality is unacceptable for three reasons. First, a device driven definition arbitrarily classifies a given system as virtual reality or non virtual reality based on the inclusion of a predetermined set of machines. Second, a device driven definition provides no clear conceptual unit of analysis for virtual reality. Third, a device driven definition results in an absence of theoretical dimensions across which virtual reality systems may vary. Steuer (1992, p. 80) contends that virtual reality must be defined as a particular type of experience, as oppo
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