In an

ORS

, its metadata (logical model) should match its physical schema (tables and columns) exactly. For every metadata definition, there should be a corresponding physical component, and for every physical component there should be a corresponding metadata definition.

Certain events, however, can cause discrepancies between the metadata and physical schema. For example, a database administrator might make changes directly to the database instead of using the Schema Manager in the

Hub Console

. Similarly, database corruption might result from a power outage or hardware failure. The

Repository Manager

can help determine whether a discrepancy is inconsequential to

Informatica MDM Hub

operations, or whether it can cause major disruptions.