This article argues against the view put forward by Margaret Archer that there is an irreconcilable divide between realist social theory and structuration theory. Instead, it argues for the systematic articulation of the two theories at both the ontological and the methodological levels. Each has developed a range of insightful and commensurable conceptualizations either missing or underdeveloped in the other. Archer's contention that structuration theory rejects the notion of `analytical dualism' central to the realist approach is shown to be mistaken; (...) Giddens's rejection of `dualism' refers to a different conceptualization of the term. Similarly, Archer's critique of structuration's notion of a `duality' involving structure and agency is rejected by showing that Archer's own morphogenetic approach itself relies upon such a notion. A final section distinguishes between six key problematics of social analysis. It is clear that, for a large number of possible questions within the majority of these problematics, it is a combination of both ontologies that would facilitate the most adequate substantive account. (shrink)