Differences between IRE and CMDB Health - Duplicate Metric algorithm

kuroiwa
Tera Contributor

Hello everyone,

I am researching duplicate checks to maintain the health of the CMDB.
As a result of my investigation, I have the impression that "IRE" is used in many places.
However, the CMDB Health job regularly performs duplicate checks.
*Job = CMDB Health - Duplicate Metric algorithm

There was a mention that CMDB Health - Duplicate Metric algorithm also uses IRE.
Therefore, I would like to know the differences between CMDB Health - Duplicate Metric algorithm and IRE.


1. There was a mention that CMDB Health - Duplicate Metric algorithm does not check all CIs,
but is CMDB Health - Duplicate Metric algorithm just narrowing down the CIs to search?
2. In addition to "IRE," is it performing a detailed duplicate check? (Searching more thoroughly than identification rules?)
Reference:https://support.servicenow.com/kb?id=kb_article_view&sysparm_article=KB0726425

Thank you in advance.

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