tool supports files in the Common Warehouse Model (CWM) format. A CWM file can be generated using a third-party software such as Erwin. The advantage to using CWM is that you can apply CWM schema on seed ORS using the import from CWM option in the Hub console.
If you apply a CWM schema on a seed ORS, system columns such as ROWID_OBJECT and CREATE_DATE are automatically added. ROWID_OBJECT is the primary key of the table enforced by MDM.
You must not import content metadata tables such as EMI, EMO, and XREF tables to a seed ORS, as these are created automatically.
An EMI table is a system table and its structure is based on the match columns you define.