Changes to requirements may happen at any time during the business analysis processes, as new information, feedback, issues, or opportunities arise. The business analyst should be prepared to manage and communicate changes to requirements using a change control system and a traceability matrix. The business analyst should also ensure that the changes are aligned with the business needs and objectives, and that they do not compromise the quality and value of the solution.

References: The information is verified as per the BABOK® Guide and related IIBA resources, which outline the standards and practices for business analysis. The BABOK® Guide is a key resource for understanding business analysis processes and their interactions