A relation qualifier, which is a CI of the Qualifier [cmdb_ci_qualifier] type, stores
important information about the CI relationships.
In a relation qualifier, you can annotate arbitrary unique information about the relationship
between two CIs. You can define multiple qualifiers for a single relationship, resulting in a
qualifier chain. But, there can be only a single qualifier chain for a specific relationship type
between two CIs.
For example, for a relationship between a parent CI and a child CI, you can add a relation
qualifier to note that the relationship was discovered based on traffic (such as
cmdb_ci_qualifier_trafficbased). This results in having two records in the
CI Relationship [cmdb_rel_ci] table for the relationship.
- A record that links the parent CI and the new qualifier
- A record that links the new qualifier and the child CI
For this relationship, there is a parent CI and a child CI, and a relation qualifier of type
cmdb_ci_qualifier_trafficbased.
For information about usage of relation qualifiers in the identification process, see CMDB identification rules.