本文跳脫舊俗，不由學者對Information的定義入手，而是由中文的字源、字義著
手分析「信息」與「資訊」二詞之區別，並將相關概念的詞彙依序給予明確之定義。然後探
討信息及其運動的特徵，再由主體利用可認知之信息以趨吉避凶之本質，導入信息在人、事
、時、地的應用，即資訊科學。《易》為中國最早之系統學論述，不但討論人與宇宙運行的
互動關係，且尋求掌握時空運轉之規律，而資訊科學是主體對信息的選擇與利用，故二者有
非常密切之關係，所以由《易》推演出數點可供資訊科學發展借鑒之結論。網路和電腦是處
理資訊的利器，但因資訊網路系統糾纏及資訊氾濫成災現象，對些本文亦，快速發展，加上
有心人士的推波助瀾，引發目前網路經由《易》之觀點提出對未來資訊服務趨勢的看法和建
議，同時對網路萬能的迷思略施針砭。

This article can be divided into four parts. The first, author intends
to circumscribe "information" by the way of etymological and semantic of Chinese
to define several terms related to "information" also. Second, the paper
discusses the characteristics of information and its movement, and review some
issues about information science. Third, information science is that subject rec
ognized informtion and used it for making decision or solving problems. Yi-Jeng
(Book of Changes), the oldest book about the world system, not only explains
about the relationship between human being and Universe, but also focuses on how
to recognize and use information to improve living quality and avoid the cause
of calamity. Therefore, there are some conclusions, which are useful for the
development of information science, are abstracted from Yi-Jeng. Finally,
network is the gret tool for information service, but now there is chaos state,
for information network develops rapidly without precise projects. Thus, the
paper concludes with a consideration of some desirable characteristics for the
design of information service systems.