structured proposal for business improvement that functions as a decision package for decision-makers The business case should explain why a project is required for the business and what the product or service is going to be. It should include an outline of the “Return on Investment” (ROI), or a cost/benefit analysis for the project, the project's product and performance characteristics, major project risks and the opportunities.

The business case addresses, at a high level, the business needs that the project seeks to meet. It includes the reasons for the project, the expected business benefits, the options considered (with reasons for rejecting or carrying forward each option), the expected costs of the project, a GAP analysis and the expected risks.