The net quantifiable benefit derived from a business endeavor. The benefit may be tangible, intangible, or both.

What are the common name for Financial gain, new customers, social benefits, first to market?

A documented economic feasibility study used to establish the validity of the benefits of a selected component lacking sufficient definition and that is used as a basis for the authorization of further project management activities

The documented explanation defining the processes for creating, maximizing, and sustaining the benefits provided by a project or program.