From CIO.com

Traditionally, as a project manager you declared “job done” when a project transitioned into service. One project manager I know used to have a bottle of Moet in the fridge labelled with the project name and due date and would only pop the cork when the project was handed over to the IT service team. He used to call them handover parties and somehow that champagne would taste sweeter the harder the project had been to complete.

Value used to be measured in terms of hitting the target, deadline and budget. However, now it’s much more return on investment (ROI) oriented. The value measurement of success has changed and is now more about the benefit delivered by the project, in other words, value that the use of the project brings to the business. The danger is that some of these measures can be ambiguous without rigorous reporting – and who better be part of that than the people who know the project and its business case better than anyone.