In organizational behavior and industrial and organizational psychology, organizational commitment is an individual's psychological attachment to the organization. Organizational scientists have also developed many nuanced definitions of organizational commitment, and numerous scales to measure them. Exemplary of this work is Meyer and Allen's model of commitment, which was developed to integrate numerous definitions of commitment that had been proliferated in the literature. Meyer and Allen's model has also been critiqued because the model is not consistent with empirical findings. It may also not be fully applicable in domains such as customer behavior. There has also been debate surrounding what Meyers and Allen's model was trying to achieve.