The ‘Intervention space’ contains the last four steps of the framework – ‘Design’, ‘Intervene’, ‘Adapt’, ‘Reflect’. At this point in the process, your task is to identify the most effective way to intervene in the user or customer decision. You do this by coming up with many intervention ideas, and testing them in the context of the real decision making process.
As you put stimulus and prototypes into the hands of your audience, whether those are patients or doctors, make sure to set up tests where you can measure behavior change. How does your intervention trigger a change in the action a patient takes?
The testing you conduct is iterative, and should be repeated until you have sufficient qualitative and quantitative evidence to confidently move ahead.
The ‘Intervention space’ ends with the validation of your intervention. We have added the final step ‘Reflect’, which is often overlooked, but absolutely critical. After you understand the best way to influence a behavior, you need to address the impact it will have on the larger context of the ‘problem space’. For example, activating people with potential signs/symptoms of cancer to visit a doctor, will impact the role of the doctor; more educated patients, new communication tools, different or more frequent diagnostic testing, etc.