Acknowledgment and evaluation of performance is the quintessential HR operation. All the prior operations-recruitment, selection, hiring, assign ment, training-come together to be appraised for their results and effi cacy. For this to be effective, both worker and manager need to be open to one another and to be in relationship-trusting of one another and mutu ally concerned for the work and the organization. Performance appraisal is less a time for making judgments and more a time for workers and man agers to be a source of information to each other about the specifics of per formance. Ideally, it is also a time to mutually set the conditions workers need to achieve flow.