Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Value Measuring Methodology (or VMM) is a tool that helps planners balance both tangible and intangible values when making investment decisions, and monitor benefits. Formal methods to calculate the Return-on-Investment (or ROI) have been widely understood and used for a long time, but there was no easy and widely-known way to provide a formal justification for decisions based on intangible values, which can include the reputation of an organization, the wellbeing of staff, or the impact on society or the environment at large.