 In evaluating the fairness of hiring standards, he viewed an applicant's success in the educational system as a good approximation of achievement.Thus, he noted that hiring decisions at Hitachi, during the time of his study, were "regulated by very strict qualification standards" and not very significantly influenced by ascribed characteristics.When he turned to evaluate opportunities for advancement within the firm, however, Dore noted that "educational qualifications...limit the range of posts which one can achieve", meaning even if one's level of achievement increases, one may still be kept down by a relative lack of achievement in the educational system.