Abstract
The conventional material handling management puts an emphasis on how to select the best method from a bunch of empirical principles and apply ito t a specific case. But it depends on the ability of an experienced person, and therefore it has been found that the conventional material handling management has several disadvantages such as misuse of the princhiples, non-thoroughgoingness and deficiencies. It is deficiencies. It is desired to form a universal theory and arrange the empricial principles with it, so that such a comprehensive theory may enable eveyone to easily select an appropriate principle. I suggest that a "liveliness theory" in material handling is a desirable theory of this kind. To show liveliness theory as a widely effective theory, I classified 36 empirical principles according to types of liverliness changes. My study of these principles has proved that 10 principles can be induced from the liveliness theory, 18 principles can be consistent by putting the liveliness theory in practice and 3 principles are useful to implement the liveliness theory. Only the remaining 5 principles are found to have no relationship with the liveliness theory. The results of my study evidenced that the liveliness theory would be useful as the basic theory for judgement of improving methods.