The business owner is the person who is responsible for approval when a change in an application system is ready for release to production. The business owner is the person who has the authority and accountability for the business process or function that is supported by the application system. The business owner should approve the change to ensure that it meets the business requirements, objectives, and expectations, and that it does not introduce any adverse impacts or risks to the business operations. The information security officer, the IT risk manager, and the chief risk officer (CRO) are not responsible for the approval of the change, although they may provide input, feedback, or oversight. References = Risk and Information Systems Control Study Manual, Chapter 3, Section 3.4.1, page 3-32.