Abstract
These studies have been conducted to analyze the Man-Space system with the discipline of system engineering. The ultimate purpose of these studies is to establish theories and methods with which the Man-Space system might be controlled. The purpose of this particular study, Part III, is to establish with the application of information theory a concept of amount of information ranging from the first degree to the third degree and thus to grasp the system as software. The basic idea underlying this study is that by increasing the degree of amount of information, it should become possible to grasp the dynamic aspects of the system, while explaining details of the system.