The addition of the ROI at the very top highlights the importance of this model for all areas of the business. Many L&D departments are given shoe string budgets, but a proper evaluation structure that can feed into and help to calculate an ROI in dollar value can help market L&D to a leadership team.
source: http://elearninginfographics.com/measure-the-roi-of-online-training-using-kirkpatricks-model-of-evaluation/