Logic Model

A logic model is a diagram that lays out the intended logic of a program — how its resources and activities are expected to produce outputs and, through them, short-, intermediate-, and long-term outcomes. Popularized in human services by the W. K. Kellogg Foundation's development guide, it makes a program's underlying theory of change explicit and testable, providing the backbone for program planning, communication with stakeholders, and evaluation by clarifying exactly what the program does and what it is supposed to achieve.