1. a way of monitoring resources invested in a project in order to ensure the realisation (achievement) of potential benefits
program/management of benefits realisation
The phrase 'benefits realisation' is an expression you will generally only hear in business or professional settings used to talk about the success of investing and managing time and resources. It is a way of monitoring or expressing whether or not potential benefits are actually felt by the organization concerned. This is a very niche term only used in specific professional contexts.