Anthony Giddens' theory of structuration posits that social systems are produced and reproduced through social interaction. He defines structuration as "the structuring of social relations across time and space, in virtue of the duality of structure." There are three dimensions of structure - signification, domination, and legitimation - and three dimensions of interaction - communication, power, and sanctions. Structures are translated into actions through modalities like interpretive schemes, facilities, and norms. Giddens emphasizes both the enactment of social action and the regularities and continuations in practices that result from structuration over time.