This document discusses using lean development approaches to drive social change through digital technology. It explains that lean focuses on creativity, risk-taking, and testing new approaches to address persistent social issues. Lean emphasizes developing workable products through a process of testing and gaining user feedback to create value for users, financial backers, and society. The document advocates adopting metrics that truly measure impact and influence behavior rather than just measuring efficiency or appearances. It also stresses the importance of collaboration both within and outside organizations to address challenges through digital innovation.