Outcome Mapping is a planning and evaluation approach that focuses on the changes in behavior, relationships, and actions of individuals or groups involved in a program. It emphasizes the importance of understanding how these changes contribute to achieving broader goals, rather than just measuring outputs or immediate results. This method involves identifying key stakeholders, known as boundary partners, and mapping out desired outcomes for each partner. By tracking progress through specific indicators, Outcome Mapping helps organizations adapt their strategies and improve their impact over time, fostering a more collaborative and responsive approach to development.