ROI

ROI (Return on Investment) is the ratio of the benefit (in terms of money) resulting from the investment made to the value (expressed in money) of this investment. In the development activities ROI is sometimes used to measure the effectiveness of the training process or as the Level 4 measurement by the Kirkpatrick methodology or as the additional level 5 focusing on the financial analysis of investment in training (i.e. 5 Level according to the Philips methodology).