The duality of structure is crucial in his structuration theory wherein agency and structure interact to create social change. The activities of individuals (agency) are based upon rules and resources (structures) produced and reproduced or transformed during the interaction. Actions of individuals are restricted by rules while the resources help facilitate the action. Hence, structures of society are recursively entailed and are both constraining and enabling influences over freedom of action of individuals (Giddens, 1986). For Giddens, rules and resources stabilizes the social practices and play a key role in reproducing the social practices (Elder-Vass, 2010).
Giddens also refers to structure as the institutionalized features of societies in a looser definition. Noting the structure's involvement on the structural concepts in which he defined and quoted on following: 1. “Structural Principles: Principles of organization of societal totalities;
2. Structures: Rule-resource sets, involved in the institutional articulation of social systems;