Data conversion is the process of transforming data from one format or system to another. It is a critical activity in any data migration or integration project, as it affects the quality, accuracy, and usability of the data. Therefore, IT governance should mandate that data conversion has documented approvals from business process data owners, who are the stakeholders responsible for defining and maintaining the data requirements, standards, and quality for their respective business processes. This ensures that the data conversion meets the business needs and expectations, as well as complies with the relevant policies and regulations. References:

CGEIT Review Manual 2021, Chapter 4: Resource Optimization, Section 4.2: Data Management, page 1651

CGEIT Review Questions, Answers & Explanations Manual 2021, Question 10, page 252

Data Conversion: Definition, Best Practices, and Examples3

Data Governance Roles and Responsibilities4