'''Social complexity''', in the discipline of '''[[sociology]]''', in the discipline of [[sociology]], is a [[conceptual framework]] useful in the [[analysis]] of society. Contemporary definitions of [[complexity]] in the [[science]]s are found in relation to [[systems theory]], in which a [[phenomenon]] under study has many parts and many possible arrangements of the relationships between those parts. At the same time, what is complex and what is simple is relative and may change with time.<ref>Waldrop, M. Mitchell (1992.) ''Complexity: The Emerging Science at the Edge of Order and Chaos.'' New York, NY: Simon & Schuster.</ref>