An additional step towards contextualising future policies entails determining the functional characteristics of each policy intervention. To do so, it is advised to use the “Intervention Wheel”. This tool is built on the foundations presented by the Behaviour Change Wheel (Michie, van Stralen, & West, 2011) and has been extended by including the type of policy interventions from step 4. The advantage of using the wheel in this step is that it helps policymakers to streamline their policy ideas into specific policy interventions with related, practical functions (education, coercion, training, enablement, incentivisation, etc.).

Policy formulation is not the ultimate goals of this step. The objective is to build a structured map of the mix of policy options generated.