Difference between these two views is that the Europeans were interested in
macroscopic, structural points from whole problems, and the Americans dealt with
microscopic issues of behavior. Other side, in Europe the organization as a complex
and the organization as a system had been the focus of attention in relation to
external social environment. Until they proceeded from extended demands of self realization
and participation, and sociological interrogation, in America employees’
needs, attitudes, internal process of organization as system were examined. So a
psychological or social-psychological approach was used rather (Kassem, 1976).