systems theory (redirected from Systems theories)
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Related to Systems theories: General System Theory
systems theory approaches to the study of SYSTEMS (especially SYSTEM, sense 3), which emphasize the general properties of goal-seeking systems – hence the term general systems theory is also used to refer to this approach (see also CYBERNETICS). These approaches were in vogue especially in the 1950s and 60s, and in sociology were particularly associated with the work of Talcott PARSONS, and with related theorists in POLITICAL SCIENCE (see also POLITICAL SYSTEM).