Knowledge is a multifaceted concept with multilayered meanings. The history of philosophy since the classical Greek period can be regarded as anever-ending search for the meaning of knowledge.3 This paper follows traditional epistemology and adopts a definition of knowledge as âjustified true belief.â It should be noted, however, that while the arguments of traditional epistemology focus on âtruthfulness" as the essential attribute of knowledge, for present purposes it is important to consider knowledge as a personal âbelief,â and emphasize the importance of the âjustification" of knowledge. This difference introduces another critical distinction between the view of knowledge of traditional epistemology and that of the theory of knowledge creation. While the former naturally emphasizes the absolute, static, and nonhuman nature of knowledge, typically expressed in propositional forms in formal logic, the latter sees knowledge as a dynamic human process of justifying personal beliefs as part of an aspiration for the âtruth.â
3 Discussion on epistemology here is based on such classical accounts as Platoâs Tbeaetetus and Phaedo, Descartesâs Discourse on Method, Lockeâs An Essay Concerning Human Understanding, Humeâs An Enquiry Concerning Human Understanding, and Kantâs Critique of Pure Reason. For interpretation of these works, see Hospers (1967), Dancy (1985), Hallis (1985), Moser and Nat (1987), and Winograd and Flores (1986). Although the terms âinformation" and âknowledge" are often used interchangeably, there is a clear distinction between information and knowledge. According to Machlup (1983), information is a flow of messages or meanings which might add to, restructure or change knowledge. Dretske (1981) offers some useful definitions. In his words:
Information is that commodity capable of yielding knowledge and what information a signal carries is what we can learn from it (Dretske 1981, p. 44). Knowledge is identified with information-produced (or sustained) belief, but the information a person receives is relative to what he ¡or she already knows about the possibilities at the source (ibid. p. 86).
In short, information is a flow of messages, while knowledge is created and organized by the very flow of information, anchored on the commitment and beliefs of its holder. This understanding emphasizes an essential aspect of knowledge that relates to human action.
The importance of knowledge related to action has been recognized in the area of artificial intelligence. For example, Gruber (1989) addresses the subject of an expertâs âstrategic knowledge" as that which directly guides his action, and attempts to develop the tools,to acquire it. Since the 1980s, the development of cognitive science has been based on a serious reflection on behavioralist psychologyâs neglect of such traditional questions as, âWhy do human beings act in a certain way?â, which was a central issue for so-called âfolk psychology" (Stich 1986). Searleâs discussion on the âspeech act" also points out a close relationship between language and human action in terms of the âintention" and âcommitment" of speakers (Searle 1969). In sum, as a fundamental basis for the theory of organizational creation of knowledge, it can be argued that attention should befocused on the active, subjective nature of knowledge represented by such terms as âbelief" and âcommitment" that are deeply rooted in the value systems of individuals.
The analysis of knowledge and information does not stop at this point. Information is a necessary medium or material for initiating and formalizing knowledge and can be viewed from âsyntactic" and âsemantic" perspectives. The syntactic aspect of information is illustrated by Shannonâs analysis of the volume of information which is measured without regard to its meaning or value. A telephone bill, for example, is not calculated on the basis of the content of a conversation but according to the duration of time and the distance involved. Shannon said that the semantic aspects of communication, which center on the meaning of information, are irrelevant to the engineering problem (Shannon and Weaver 1949). A genuine theory of information would be a theory about the content of our messages, not a theory about the form in which this content is embodied (Dretske 1981).
In terms of creating knowledge, the semantic aspect of information is more relevant as it focuses on conveyed meaning. The syntactic aspect does not capture the importance of information in the knowledge creation process. Therefore, any preoccupation with the formal definition will tend to lead to a disproportionate emphasis on the role of information processing, which is insensitive to the creation of organizational knowledge out of the chaotic, equivocal state of information. Information, seen from the semantic standpoint, literally means that it contains new meaning. As Bateson (1979, p. 5) put it, âinformation consists of differences that make a difference.â This insight provides a new point of view for interpreting events that make previously invisible connections or ideas obvious or shed light on unexpected connections (Miyazaki and Ueno 1985). For the purposes of building a theory of knowledge creation, it is important to concentrate on the semantic aspects of information.