This toolkit highlights how PATH’s Living Labs initiative uses a 4D human centered design approach to engage frontline immunization health care workers to understand factors that affect their motivation and engagement in providing health care services.

The tools in this methodology are geared toward co-creating solutions that are in the innovation sweet spot, which is the point at which the three innovation attributes (desirability, feasibility , and viability) overlap. The tools seek to accelerate innovation and foster rapid testing and evaluation.

A key aspect is to frame the problem that is, to identify and understand the user, their needs, and their context and then co create solutions that respond to those needs. Although our learned experiences largely involved frontline immunization workers, this toolkit has also been applied with community members, caregivers, community health workers, and ministry of health decision makers, as well as global development stakeholders, to address the system wide complexities of a health challenge.