PurposeThe purpose of this paper is to explore the appropriation of control rooms based on value-based integrated performance management tools implemented in all publicly funded health organizations in Quebec (Canada) as a form of legitimate sociomaterial work.Design/methodology/approachMulti-site organizational ethnographic case studies in two Integrated health and social services centers, with narrative process analysis of triangulated qualitative data collected through non-participant observation (163 h), individual semi-structured interviews (N = 34), and document review (N = 143).FindingsThree types of legitimate sociomaterial work are accomplished when actors appropriate control rooms: 1) reformulating performance management work; 2) disrupting accountability work and; 3) effecting value-based integrated performance management. Each actor (tools, institutions and people) follows recurrent institutional work-paths: tools consistently engage in disruptive work; institutions consistently engage in maintaining work, and people consistently engage in creation work. The study reveals the potential of performance management tools as “effective integrators” of the technological, managerial, policy and delivery levels of data-driven health system performance and improvement.Practical implicationsThis paper draws on theoretically informed empirical insights to develop actionable knowledge around how to better design, implement and adapt tool-driven health system change: 1) Packaging the three agents of data-driven system change in health care: tools, institutions, people; 2) Redefining the search for performance in health care in the context of value creation, and; 3) Strengthening clinical and managerial relevance in health performance management practice.Originality/valueThe authors aim to stimulate new and original scholarship around the under-theorized concept of sociomaterial work, challenging theoretical, ontological and practical conceptions of work in healthcare organizations and beyond.