The technology adoption lifecycle is a sociological model that is an extension of an earlier model called the diffusion process, which was originally published in 1957 by Joe M. Bohlen, George M. Beal and Everett M. Rogers at Iowa State University and which was originally published only for its application to agriculture and home economics.[1] building on earlier research conducted there by Neal C. Gross and Bryce Ryan.[6][7][8] Their original purpose was to track the purchase patterns of hybrid seed corn by farmers.