Business case

Business case is a mechanism used in six sigma and reengineering to outline a basis for improvement.

Definitions

According to Managing Quality by Foster (6th edition),

Business case. A mechanism used in six sigma and reengineering to outline a basis for improvement.

According to the BABOK Guide (3rd edition),

Business case. A justification for a course of action based on the benefits to be realized by using the proposed solution, as compared to the cost, effort, and other considerations to acquire and live with that solution.

According to the ITIL Foundation 4e by Axelos,

Business case. A justification for expenditure of organizational resources, providing information about costs, benefits, options, risks, and issues.