What must match on the pattern for the CMDB to successfully update?

For a successful update of the Configuration Management Database (CMDB) during a Discovery process in ServiceNow, it is essential for the CI type to match with the table specified in the Classifier. The Classifier's role is to determine how discovered data should be associated with existing Configuration Items (CIs) in the CMDB. This matching is crucial because the CMDB needs to accurately reflect the type of configuration item being discovered and how it aligns with the predefined structures in ServiceNow.

When the CI type from the discovered data aligns with the appropriate table in the Classifier, it ensures that the system can categorize and handle the data properly. Each CI type corresponds to a specific table which holds attributes and relationships for that CI. Therefore, this match is fundamental to appropriately creating or updating records in the CMDB, thereby maintaining data integrity and accuracy within the configuration management process.