Health technology assessment (HTA) aims, through empirical analysis, to shed light on the value of health technologies (O'Rourke et al. [2020, 36, 187-90]). HTA is, then, where facts and values meet. But how, where, and when do facts and values meet in HTA? Currently, HTA is usually portrayed as a sequential process, starting with empirical analysis (assessment), followed by a deliberation on the implications of the findings for a judgment of a health technology's value (appraisal). In this paper, we will argue that in HTA, empirical analysis and normative inquiry are much more closely entwined. In fact, as we hope to show, normative commitments act as an indispensable guide for the collection and interpretation of empirical evidence. Drawing on policy sciences, we will suggest a concrete methodology that can help HTA practitioners to integrate empirical analysis and normative inquiry in a transparent way. The proposed methodology can be conceived as a concrete means for conducting a scoping exercise in HTA. Moreover, it offers a distinct way of giving stakeholders a structural and constructive role in HTA. This paper outlines the approach developed by the values in doing assessments of health technologies project, a project funded by the Erasmus+ program (contract number 2018-1-NL01-KA203-038960), which is the European Union's program to support education, training, youth, and sport in Europe. The project has resulted in an E-learning course, an accompanying handbook, and a consensus statement, all freely available from the project's website www.validatehta.eu.