The document summarizes a presentation on health systems strengthening given at an Africa Christian Health Association conference. It discusses various frameworks for health systems strengthening from different organizations. It then reviews WorldVision project models and how they could fit within a systems approach. The models include Timed and Targeted Counseling, Community Case Management, Channels of Hope, Community Management of Acute Malnutrition, CitizenVoice and Action, and Community Health Committees. The presentation concludes by discussing how WorldVision's community-based models could be used at different levels to strengthen health systems. It presents a framework to show how the models could operate within and influence the formal health system, social environment, and community and household levels to ultimately improve health.