| Summary: | 碩士 === 國立交通大學 === 管理科學研究所 === 86 === Ever since the commercial application of the Internet was
rapidly developed, the WWW has become the most important
information medium for the enterprises. Most large-scale
enterprises have connected to the Internet through the
application of Web-based technology and set up their own
internal network (Intranet). However, most of the data in these
enterprises, daily operation are still processed under the
Legacy Information System. Consequently, two types of
information system, based on the old and new technology
respectively, concurrently exist in many enterprises,which led
to the result that the two systems and data can''t be mutually
shared and integrated. Thus, it is the most important and
difficult task for large-scale enterprises to integrate the
Legacy Information System with the Internet, Intranet and
Extranet on the purpose of information integration andfurther
development. The Web-Based System Integration Model (WBSIM)
was derived from study probing deep into the methodology on
information system integration. Basedon the Web-based technology
and the Internet/Intranet/Extranet architecture, this model is
to integrate the two above-said information systems by means of
prototyping method. So that the customers, employees and
business partners can reach the information flow just like
through one information system only. This research also
includes a case study on a large-scale enterpriserelated to the
problems and requirements of its information system integration,
and its integration strategy. Eventually, by applying the WBSIM
and underthe blueprint of the information environment of the
case, an initial prototype on integration, the Perfect
Information System (PIS), was designed so as to evaluate the
feasibility and effectiveness of WBSIM.
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