---
sourceDocument: Yokohama IT Operations Management
sourceDocumentLink: https://servicenow-prod.fluidtopics.net/r/yokohama/it-operations-management

 Release :

    - yokohama

ft:locale :

    - en-US

ft:publication_title :

    - Yokohama IT Operations Management

ft:clusterId :

    - itom

bundleId :

    - itom

workflow :

    - Technology


---

# CMDB service classes

# CMDB service classes {#ariaid-title1}

* Release version: Yokohama
* 
* Updated January 30, 2025
* 
* ![](https://www.servicenow.com/docs/portal-asset/ico-clock) 1 minute to read

Service Reliability Management typically supports several Configuration Management Database (CMDB) service classes.
Types of CMDB service classes that Service Reliability Management support:

* Service instances (cmdb_ci_service_auto)
* Technical services (cmdb_ci_service_technical)
* Query-based services (cmdb_ci_query_based_service)
* Mapped application services (cmdb_ci_service_discovered)
* Calculated application services (cmdb_ci_calculated)
* Tag-based application services (cmdb_ci_service_by_tags)
{#sr-cmdb-service-classes__ul_tnb_xbk_ybc}