The procedures and coding schema that have been developed by the Research on the Improvement Process (RIP) Program for analyzing the frequency of interventions and for examining their internal characteristics are described. In two in-depth ethnographic studies of implementation efforts, interventions were the focus of data collection and analysis. This research resulted in the development of a multi-level intervention classification system. This Taxonomy of Interventions (TI) includes formal definitions and conceptual frameworks which can be used (1) to classify the interventions that are made by the various actors within a change effort and (2) to relate them one to the other along several dimensions. A second framework, the Intervention Coding Framework (ICF), emerged to code each identified intervention in terms of a defined set of sub-dimensions. The resultant TI and ICF provide both the conceptual and analytic tools to describe and compare the actions taken by the various individuals within or across change efforts. Illustrations of the developed analysis option concepts include a definition of the intervention; and the frameworks used for collecting, describing, and analyzing principals' behaviors as they intervened in the change process in their schools. (Author/PN)