---
title: CMDB IRE reference
description: Reference topics provide property settings, domain separation, and other reference content for the CMDB Identification and Reconciliation Engine \(IRE\).
locale: en-US
canonical_url: https://www.servicenow.com/docs/r/australia/servicenow-platform/configuration-management-database-cmdb/ire-reference.html
release: australia
product: Configuration Management Database \(CMDB\)
classification: configuration-management-database-cmdb
topic_type: concept
last_updated: "2026-03-12"
reading_time_minutes: 1
breadcrumb: [CMDB Identification and Reconciliation \(IRE\), Configuration Management Database \(CMDB\), Configuration Management, Extend ServiceNow AI Platform capabilities]
---

# CMDB IRE reference

Reference topics provide property settings, domain separation, and other reference content for the CMDB Identification and Reconciliation Engine \(IRE\).

## Reference topics

-   **[Domain separation and CMDB Identification and Reconciliation](https://raw.githubusercontent.com/ServiceNow/ServiceNowDocs/australia/markdown/australia/servicenow-platform/configuration-management-database-cmdb/domain-separation-identification-reconciliation.md)**

    How domain separation is supported in IRE to let you separate data, processes, and administrative tasks by domains in your organization.

-   **[Properties for Identification and Reconciliation](https://raw.githubusercontent.com/ServiceNow/ServiceNowDocs/australia/markdown/australia/servicenow-platform/configuration-management-database-cmdb/properties-id-reconciliation.md)**

    Properties that you can adjust to manage different aspects of how IRE functions.

-   **[IRE error messages](https://raw.githubusercontent.com/ServiceNow/ServiceNowDocs/australia/markdown/australia/servicenow-platform/configuration-management-database-cmdb/id-engine-error-messages.md)**

    Errors and messages that the Identification and Reconciliation Engine \(IRE\) generates.

-   **[Components installed with Identification and Reconciliation](https://raw.githubusercontent.com/ServiceNow/ServiceNowDocs/australia/markdown/australia/servicenow-platform/configuration-management-database-cmdb/r_IWIdentAndReconcil.md)**

    Details about tables associated with IRE.