The study objective was to identify factors shown to have influenced the acceptance of a career guidance system in six high schools. The theoretical framework was based on characteristics of the advocates, consumers, system, and interrelationships among those three. Records, interviews, field notes, and surveys were used to collect data. The findings indicated that the adoption process occured in three distinct phases, and variables in each of the domains were attributable to inhibiting or facilitating adoption. The study illustrates the effect that factors other than the innovation, such as the context and strategies used by advocates, have on adoption. (Author)