She refers to her view as the "morphogenetic" approach. Here is how she explains this concept:
The 'morpho' element is an acknowledgement that society has no pre-set form or preferred state: the 'genetic' part is a recognition that it takes its shape from, and is formed by, agents, originating from the intended and unintended consequences of their activities.
So what is Archer's central notion, the idea of morphogenesis? It is the idea that processes of change occur for agents and social structures in interlocking and temporally complex ways. Agents are formed within a set of social structures -- norms, language communities, power relationships. The genesis of the agent occurs within the context of these structures. On a larger time scale, the structures themselves change as a result of the activities and choices of the historically situated individuals who make them up. She summarizes this ontology as a set of cycles with different time frames: structural conditioning => social interaction => structural elaboration (16). This notion leads Archer to a conception of the social and the actor that reflects a fundamentally historical understanding of social processes. Formation and transformation are the central metaphors (154).