Et styringsværktøj til at vurdere, hvordan en bestemt beslutning (investering, fusion, tilbud, projekt m.m.) påvirker rentabiliteten i en virksomhed. Definitionen på Business Case er mange - her et uddrag:
Gambles: “A business case is a recommendation to decision makers to take a particular course of action for the organisation, supported by an analysis of its benefits, costs and risks compared to the realistic alternatives, with an explanation of how it can best be implemented.”
Prince2: “to provide a structure to judge whether the Business Case is desirable, viable, achievable and worth the continued investment that is made during the project”.