Action research and design research are two prominent research approaches in information systems. These two research approach have been claimed to be similar according to several conducted comparisons. There are, however, other claims that they are decisively dissimilar. Some scholars have proposed integrations of these two research approaches, which however show great diversity. These diversities in views of similarities, differences and integration possibilities are the main impetus for this work. This conceptual inquiry takes a new angle in comparing and integrating action research and design research. It uses a third position, the research approach of practice research as a yardstick and integration instrument. Action research and design research are studied and compared using practice research. This comparison has been driven further to a proposed integration within the conceptualisation of practice research. An integrated model of action research and design research is presented and given the label practice research through intervention and design (PR-ID).