Business case

Term
Business case
Exam
CISA & CISM
Definition

A document justifying an investment by comparing benefits with costs and risks.

Explained

A business case justifies an investment by comparing expected benefits — including risk reduction — with total costs and risks, against alternatives including doing nothing. It should be revisited during delivery and used to measure benefits afterward.

In practice

A proposal shows that a US$200,000 identity platform reduces expected losses by US$450,000 a year.

Often confused with
Feasibility study
Exam angle

Revisit it at key points; it is a living document.

Related

Post-implementation review · Annualized loss expectancy (ALE)

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