Management Myth-Information Systems (MMIS) are information systems which present information to a decision maker by means of stories. In MMIS a scientific datum by itself is not information, but is information if and only if it is tied to an appropriate story or myth that has meaning to the individual who needs the information, the organization in which he is located, and the type of problem that he faces. Since this defines the key variables underlying MMIS, the study of the critical literature dealing with the nature and function of mythology becomes central to MMIS design. Ways are suggested in which the literature of mythology and the phenomenon of story-telling can be used in the design of MMIS if not for information systems in general. An experiment dealing with some central features of MMIS involved playing a series of games under the twin conditions of uncertainty and dialectical advice. Experimental subjects were exposed to the advice of two radically opposing "experts of the game" who were designed to present opposing views of the game situation. A suggested program of research and a list of references are given. (Author/LS)