Appendix XXXII: Periodic, unannounced evaluation of human performance

Training assessment tools, used at the end of initial or continuing training courses, are not designed to identify the extent of degradation (over time) of human performance after completion of training, or inadequate reinforcement of the standards by supervisors. In response to this identified limitation, Exelon Nuclear (USA) developed what it calls an 'out of the box evaluation' (OBE). An OBE is an assessment in which fully qualified/authorized workers are evaluated on a specific work task by their supervisor and a training instructor. There is minimal time allotted for the worker to prepare for the evaluation because the exercise is designed to assess the behaviors that should be used as part of any task the individual is qualified to perform