A '''microsystem''' is a self-contained subsystem located within a larger system. It generally constitutes the smallest unit of analysis in systems theory.

==Ecological systems theory== Urie Bronfenbrenner uses the term in his ecological systems theory where it constitutes the most immediate environment which envelops an individual. Thus in a child's development it consists of parents, guardians, other family members, and close friends who constitute the immediate home circle.<ref name="A&O'n">{{cite journal |last1=Ashiabi |first1=Godwin S. |last2=O’Neal |first2=Keri K. |title=Child Social Development in Context: An Examination of Some Propositions in Bronfenbrenner's Bioecological Theory |journal=SAGE Open |date=19 June 2015 |volume=5 |issue=2 |pages=215824401559084 |doi=10.1177/2158244015590840|doi-access=free }}</ref>

==References== {{reflist}}

Category:Systems theory

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