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trial-and-error method

This is a heuristic procedure that allows a system in an unknown environment to seek out behavioral alterations in order to insure its adaptation and continuation. The trial-and-error method is a principle that structures the behavior of individuals and families (self-organization, coevolution).
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Definition extracted with permission from Simon, Fritz, et al, Family Process, Inc.: Language of Family Therapy: A Systemic Vocabulary and Source Book (Family Process Press Series)