| Summary: | 碩士 === 國立臺灣大學 === 資訊管理研究所 === 84 === Knowing how to use an information system well is as important
as ensuring that the information system is designed well. We
use a case study approach to propose a system benefit
evaluation model to assess the tangible and intangible benefits
of a machine repair expert system. The results can provide a
basis for the decisions made during system development and
implementation. In our research, we use a computer
simulation method to calculate the tangible benefits of using
the expert system and to study their sensitivity to different
input parameters. We also apply a well-known marketing
research method, conjoint analysis, to evaluate the relative
value of the tangible and intangible benefits of the
expert system. Finally, we combine the two methods to
develop an integrated model of machine repair expert system
evaluation. The results of the case study indicate that the
case expert system will contribute a great cost saving while
adding intangible benefits as well. We have not yet seen any
research using conjoint analysis to evaluate benefits of
information systems in our country. This is the first
attempt to quantify the intangible benefits of
information systems through conjoint analysis. The case
company verified that the results of our research provide a
realistic index of system benefits. The development of
this kind of evaluation model warrants further research.
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