5. Evaluating and Refining the Intervention Design

A novel approach of the TUDER framework is the importance offered to constant evaluation of the intervention design. The framework suggests that usability evolution (regarding human-computer interaction and uptake) and effectiveness evaluation (regarding behavior change and impact) should be considered when designing an intervention. The framework provides suggestions for refining the intervention, such as think-aloud, cognitive walkthrough, pilot-testing, and heuristic evaluations (Wang et al., 2019).