In a general way it may be said that to think in terms of systems seems the most appropriate conceptual response so far available when the phenomena … - Fred Emery

A main problem in the study of organizational change is that the environmental contexts in which organizations exist are themselves changing, at an increasing rate and towards increasing complexity. This point, in itself, scarcely needs laboring. Nevertheless, characteristics of organizational environments demand consideration for their own sake if there is to be an advancement of understanding in the behavioral sciences of a great deal that is taking place under the impact of technological change, especially at the present time

We have now isolated four "ideal types" of causal texture, approximations to which may be thought of as existing simultaneously in the "real world" of most organizations--though, of course, their weighting will vary enormously from case to case.

The further development of the open system thinking propounded by von Bertalanffy and Prigogine requires us to characterize the environments within which open systems are functioning. Four levels of environmental organization can be distinguished in terms of their causal texturing... Coming out from an academic cocoon to work at the Tavistock Institute in London I found myself trying to comprehend the behavior of very large organizations in the face of very devastating winds of change... The conceptual developments in that paper have continued to play a considerable role in my subsequent thinking.