In today's global, competitive environment, it's no question that we need to evaluate-and prove the value of-our training programs. That, of course, is easier said than done. Fortunately, the four-level evaluation model simplifies what can be a complex process. This Infoline explains in detail each of the four evaluation levels, what resources you need for each level, and which programs you should evaluate.
Donald Kirkpatrick was Professor Emeritus at the University of Wisconsin in the United States and a past president of the American Society for Training and Development.
It explained everything correctly, the four levels of evaluation need to be done in every training program that exists. I really recommend it for someone who is designing a training program.