The concept of development that is underlying the GCGD research agenda is a broad one, covering economic, social, political and environmental change. Development is constrained, not just by the availability of resources and access to technology, but possibly even more so by the quality of domestic institutions and governance. The latter factors determine how effectively resources are used, and they are increasingly inﬂuenced by interests that transcend state boundaries. The chapters in this volume seek to improve our understanding of how the governance structures needed for development in developing countries are affected by external interventions. This chapter provides an outline of how we deﬁne the concepts of domestic governance, institutions and external intervention. We start by drawing a picture showing the components of the steering framework of the society that we are considering.