| B 050 | In case an invalid or corrupted message is received, An IDS Meta Data Broker must reject it. |
| B 051 | An IDS Meta Data Broker must not present data of a removed or passivated component after its removing has been acknowledged to the requesting entity. |
| B 052 | An IDS Meta Data Broker must allow updates of a registered IDS Connector if the update request was originally initiated by this Connector, or by the IDS entity controlling the Connector, if this relation has been made visible to the Broker. |