Outcome Mapping (OM) is a structured participatory tool that uses a bottom-up collaborative process to engage all Spillover Ecosystem stakeholders (both traditional and non-traditional). OM recognizes that development, at its core, focuses on how people and stakeholders relate to one another and their environment. The process of inclusive development allows stakeholders to drive the change and own the process, which builds towards self-reliance and sustainability. Through the OM process, stakeholders will map their outcomes and work with critical partners to identify, design and implement interventions to address spillover. The OM process focuses on eff ecting changes in behavior, relationships, actions, and activities in the people, groups, and organizations that will lead to stopping spillover.