 Krip Patrick's model for levels of learning. In this model, the first stage is the reaction where we need to measure our participants initial reaction to gain an understanding of the training program and valuable insights into material quality educator and more. Then we move on to the learning where we measure how much information was effectively absorbed during the training and map it to the program or individual learning objectives. We move on to the next stage, the behavior where they measure how much your training has influenced the behavior of the participants. That is, in day-to-day practices, how much they are applying your concepts, you need to evaluate how they apply this information on their job. Then finally, the results and while applying, how successful they are. That is these results. So we need to measure and analyze the impact of your training has had at the business level and we need to be sure to tie it to the individual or program.