In modern science, in fact, let alone modern systems theory, cause disappears wherever you have a very complex system of interrelated elements. - Walter F. Buckley

# A synthetic approach where piecemeal analysis is not possible due to the intricate interrelationships of parts that cannot be treated out of context of the whole;

In essence, the process model typically views society as a complex, multifaceted, fluid interplay of widely varying degrees and intentions and intensities of association and dissociation. The "structure" is abstract construct, not something distinct from the ongoing interactive process but rather a temporary, accommodative representation of it at any one time.

In a class system, the social hierarchy is based primarily upon differences in monetary wealth and income. Social classes are not sharply marked off from each other, nor are they demarcated by tangible boundaries. Unlike estates, they have no legal standing, individuals of all classes being in principle equal before the law. Consequently, there are no legal restraints on the movement of individuals and families from one class to another... Unlike caste, social classes are not organized, closed groups. Rather, they are aggregates of persons with similar amounts of wealth and property, and similar sources of income.