Final answer:
During CSDM migration, refactoring attributes involves making changes to the structure and design of the attributes to improve efficiency and maintainability.
Step-by-step explanation:
During CSDM migration, refactoring attributes involves making changes to the structure and design of the attributes in a way that improves their efficiency and maintainability. This can include modifying data types, renaming attributes for clarity, and restructuring their relationships with other attributes or objects. Refactoring attributes is an important step in the migration process to ensure that the data model aligns with the new system architecture and optimizes performance.