Assess learners' ability to design an evidence-based, scalable workplace program to increase physical activity and reduce sedentary behavior by integrating behavior-change theory (e.g., COM-B, SCT), ergonomic interventions, wearable-derived activity analytics for monitoring and feedback, and a cost-effectiveness/ROI evaluation; the design should specify target population, implementation strategy, measurable behavioral and health outcomes, data collection and analytics methods (metrics, privacy, validity), selected behavior-change techniques, ergonomic solutions, scalability and sustainability considerations, a detailed economic analysis framework (costing, benefits, sensitivity analyses, ROI), and an evaluation timeline with potential barriers and mitigation strategies.