This briefing note belongs to a series on the various models used in political science to represent public policy development processes. Each of these briefing notes begins by describing the analytical framework proposed by a given model. Then we set out to examine questions that public health actors may ask regarding public policy, while keeping in mind the perspective that this model affords. It should be noted that our aim in these notes is not to further refine existing models; nor is it to advocate for the adoption of one of them in particular. Our purpose is rather to suggest how each of these models constitutes a useful interpretive lens that can guide reflection and action leading to the production of healthy public policies.