Experiences of applying general living systems theory

In this paper the use of general living systems theory (GLST) and the quant ification of different levels of living systems are discussed. This discuss ion is based on a proposal for the quantification of different levels of sy stems in Frandberg (1994). Alternative models are reviewed, since it is vit al that we base our understanding on the possibilities for finding a theory and make quantifications in order to understand the conditions necessary f or our survival. Bailey (1994) discusses living systems at length, emphasiz ing that: While some observers such as Miller feel that a maturing systems theory mus t move past early emphasis on systems philosophy and metatheory to operaliz ation and quantitative formalization of theory this has happened only parti ally. and further: Miller believes that precise quantification of living systems theory is nec essary, not only for integration of disciplines (particularly the integrati on of social science and physical science) but also for hypothesis testing. This paper will address the issue of quantification and the development of the simulation model ITHINK based on the logic of living systems theory. Co pyright (C) 1999 John Wiley & Sons, Ltd.