Revisiting the Use and Utility of Domain Mapping: A Comparative Study of the Future(s) of Diplomacy and International Affairs

Domain mapping is a necessary yet too‐easily overshadowed component of strategic foresight. A domain is defined as any topic that serves as the central focus of a foresight project. Domain mapping is the process of conceptually framing its scope, often by way of participatory brainstorming sessions with subject matter experts. Domain mapping should be thought of as a prerequisite to robust foresight research, a crucial and necessary preliminary step that animates all subsequent processes. Our article has two objectives: to reinvigorate the discussion on the use and utility of domain mapping by illustrating how, why, and when to use the technique; and, using a series of nine domain maps created with hundreds of Canadian public servants between 2018 and 2024, to test a novel approach for empirically evaluating the cumulative results of domain mapping by comparatively assessing the thematic shifts policy practitioners have attributed to the future(s) of diplomacy and international affairs. Our approach illustrates how longitudinal empirical studies of domain maps can shed light on the emerging and shifting perspectives of foresight experts and policy practitioners. The paper highlights nine separate uses for the technique, identifies where foresight and domain mapping are currently used within the Canadian government, analyzes an original set of related domain maps, and provides lessons on facilitating, using, and applying domain mapping with a focus on representation, group dynamics, and data quality.