A New Philosophy of Society: Assemblage Theory and Social Complexity is a 2006 book by the philosopher Manuel DeLanda.
This means that a component is self-subsistent and may be "unplugged" from one assemblage and "plugged" into another without losing its identity.
A third axis defines processes in which specialized expressive media (genetic/linguistic resources) intervene in "coding"/"decoding" the assemblage.
As an example of an assemblage (as defined by DeLanda) consider an ecosystem: Consistent with DeLanda's materialist position, the book also includes as a secondary task a sustained criticism of the primacy of post-modernist linguistic analysis in social science (the theory of the linguistics of experience).
DeLanda, Manuel (2006) A New Philosophy of Society: assemblage theory and social complexity, London & New York: Continuum