CMDB classifications CMDB classifications are groups of configuration items (CIs) that share attributes and are stored in their own table. Classifications allow administrators to define the hierarchy of CIs within the CMDB. A CI class refers to the actual table name in the instance database. In that context, CI Type is a friendly name that a CI is known by, such as computer, router, or printer. As good practice, keep CI classifications as simple as possible. Configuration Management DatabaseThe Configuration Management Database (CMDB) is a series of tables that contain all the assets and business services controlled by a company and its configurations.CMDB record typesThe CMDB contains the following major record types.Relationship rulesAny time you create a new classification (extend a table), you must create new relationship rules.Related Lists of CI componentsRelated Lists in CI records display additional components contained by that CI, such as disk drives on a server and the rules that control the behavior of a network router.Create a CI classCreate a CI class (table) that is an extension of an existing CI class. Then create identification and reconciliation rules for the new class.Reclassify a CIYou can upgrade, downgrade, or switch the class of a CI by modifying its Class attribute. Delete all records for a CMDB classYou can delete all the records for a CMDB class in the CI Class Manager.View and edit class definitions and metadataUse the CI Class Manager as a central location to explore the CMDB class hierarchy, CI table definitions, and class CIs. View the details of each table such as its label and fields, relationships, and all related metadata definitions.