Career development
Career development theories propose vocational models that include changes throughout the lifespan. Donald Super's model proposes a lifelong five-stage career development process. The stages are growth, exploration, establishment, maintenance, and disengagement. Throughout life, people have many roles that may differ in terms of importance and meaning. Super also theorized that career development is an implementation of self-concept. Gottfredson also proposed a cognitive career decision-making process that develops through the lifespan. The initial stage of career development is hypothesized to be the development of self-image in childhood, as the range of possible roles narrows using criteria such as sex-type, social class, and prestige. During and after adolescence, people take abstract concepts into consideration, such as interests.