John F. MacGregor, PhD, is President and CEO of ProSensus Inc. (Email: john.macgregor@prosensus.ca), a company that provides specialized engineering consulting and state-of-the-art software for the analysis and interpretation of big data from the process industries, and for the online monitoring, control, and optimization of processes based on developed models. He is a Distinguished University Professor Emeritus at McMaster Univ., Canada, where he spent 36 years in the Chemical Engineering Dept. and in the McMaster Advanced Control Consortium (MACC), and where his research group developed many advanced big data methods in collaboration with the large international sponsor companies of MACC. He has received many awards, including the Shewhart Medal from the American Society for Quality; the Herman Wold Medal from the Swedish Chemical Society; the Century of Achievement Award and the R. S. Jane Award from the Canadian Society for Chemical Engineering; the Computing and Systems Technology Award from AIChE; the Nordic Process Control Award from the Scandinavian Control Society; and the Guido Stella Award from the World Batch Forum. He received a BEng from McMaster Univ. in Canada, and an MS in statistics and chemical engineering and a PhD in statistics, both from the Univ. of Wisconsin–Madison. He is a Fellow of the Royal Society of Canada, the Canadian Academy of Engineering, and the American Statistical Association.