Abstract. When assessing the usability of BPM technologies enterprises have to rely on vendor promises or qualitative data rather than on empirical or experimental research. To address this need Cheetah Experimental Platform (CEP) has been developed fostering experimental research on business process modeling. CEP provides components that are frequently used in controlled experiments and allows their assembly to experimental workflows. CEP supports experimental execution by mitigating risks endangering data validity through better user guidance. Additionally, CEP provides richer evaluation techniques compared to paper based experiments fostering the experiment's data analysis.