Which method is primarily used for handling schema changes in data sources after initial import?

The method primarily used for handling schema changes in data sources after initial import is schema synchronization. This method allows for efficient updates to the existing dataset structure without having to recreate or reimport the entire dataset.

Schema synchronization automatically detects any changes in the source schema and aligns the dataset structure in Workday accordingly. This ensures that any new fields, modified fields, or deletions are appropriately handled, maintaining the integrity of the data and the relationships within it. This approach is far more efficient than other methods, as it minimizes data loss and processing time while allowing the dataset to remain current with the source data changes.

While manual editing of datasets, resaving of base datasets, and reimporting may have their uses in specific scenarios, they are not the most effective or recommended practices for ongoing schema management. Manual adjustments may introduce errors, resaving doesn't necessarily address structural changes, and reimporting can be cumbersome and resource-intensive, often leading to unnecessary complications in maintaining data consistency.