The technology adoption life-cycle is a sociological model that is an extension of an earlier model called the diffusion process and which was originally published only for its application to agriculture and home economics. The technology adoption life-cycle model describes the adoption or acceptance of a new product or innovation, according to the demographic and psychological characteristics of defined adopter groups. The process of adoption over time is typically illustrated as a classical normal distribution or “bell curve.” The model indicates that the first group of people to use a new product are called “innovators,” followed by “early adopters.” Next come the early and late majority, and the last group to eventually adopt a product are called “laggards”.