Who will be evaluated to measure the training program?

training dept

Apprentice him to measure the benefit of the training material and the Director Administration evaluating the performance of the employee to make sure the impact of training on administration

One of the indicators of the training program performance is determined by evaluating and determining  the trainees percentage of success.

trainees will be evaluated to measure the training program

The question is not clear but trainees are evaluated in training program and measurement is done by the trainer.