What is APES? APES is a software tool that visualizes process data of all kinds and thereby transforms qualitative case study data into quantifiable data that can be used for a systematic comparative assessment of processes.   See screenshot of an APES target diagram How to cite APES Serdült, Uwe; Vögeli, Chantal; Hirschi, Christian, and Widmer, Thomas. 2005. APES - Actor-Process-Event Scheme. Zurich, Switzerland: IPZ, University of Zurich.   Who is using APES? APES was initially used by political scientists specialized in the analysis of public policy processes in terms of qualitative case studies. However, APES can be used in all areas where process data is gathered and needs to be analyzed and evaluated in a simple and efficient way.