作者認為資訊尚未理論化
Hjorland (1998) maintains that information science in itself lacks explicit theories, but is implicit in its practices. (Cornelus, 1996)
其他學科對informaiton concept 的探討.(Machlup & Mansfield, 1983)
之前ARIST 對information concept 的探討，
Shera & Cleveland (1977): Shannon's theory
Zunde & Gehl (1979): extension Shannon's theory to semiotic, and the relation with knowledge.
“information science as an empirical discipline is not concerned with what informaiton is in an ontological or metaphysical sense….. The subjcet of concern to information science is the pheonomena throught whicn the nature of information is revealed and embodied.”(p. 68) “作為一種實證學科的資訊科學，並非關注資訊的本體論或是形上學論點，而是關注於透過資訊顯現與具體本質而掌握的現象”
Boyce & Kraft (1985): (1)修正之前對於資訊科學應限於實證學科的看法，認為相關理論工作還沒有對資訊科學學科產生影響。(2) 試圖發現一種資訊的單一測量值(unitary measure of informaiton) 的相關研究.
Heilprin (1989)
Saracevic: “The investigation forcuses on the manifestations, behavior, and effects of the pheonomena under question. In a three-tier hierarchy of information interpretations as narrow, broader, and broadest, ”; “(Saracevic) sonsiders information as signals or messages for decisions(narrow); involving cognitive processing and understanding resulting from the interaction of mind and text(broader); and, in a situation, connected to the social context(broadest).”
本文認為資訊理論是只限於與資訊直接相關的，而不包含資訊搜尋等理論。同樣的，更高階的理論也被本文排除在外。因此諸如與企業經營資訊相關或是資訊社會的討論，也不包括在本文中。也不包括資訊的經濟價值議題，相關的只限於有關資訊測量的議題。