Research in social informatics can be categorized into three orientations. Normative research focuses on the development of theories based on empirical analysis that may be used to develop organizational policies and work practices. The heart of such analyses lies in socio-technical interaction networks, a framework built around the idea that humans and the technologies they build are "co-constitutive", bound together, and that any examination of one must necessarily consider the other. Studies of the analytical orientation develop theory or define methodologies to contribute to theorizing in institutional settings. Critical analysis, like Lucy Suchman’s examination of articulation work, examine technological solutions from non-traditional perspectives in order to influence design and implementation.