This paper describes Innovation Configuration (IC) Mapping as an approach for assessing the extent of implementation of a program. An IC Map is similar metaphorically to a road map in that it summarizes different ways of getting from one point to another. Each map consists of basic units, or components, that can be made operational in a number of ways (variations). Components can be combined into clusters. The focus in an IC map is on identifying and describing what one would observe in a setting in which the innovation is in use. IC maps are useful in many situations, including self-reflection, peer observation, other observations, staff development diagnostics, document implementation, and personnel evaluation. An IC map does not tell a researcher how to collect the data. It is only a recording device. (SLD)