​@stuart.campbell hi, let’s break down this query from the default glossary domain:

 name is "Finance" OR @termRelationship(target).any(type.$id = '125861e2-8f58-43d6-a8a6-7d25b8d524e0' AND source.$id = '15bbce34-0000-7000-0000-00000033052e')

@termRelationship(target).any() means it’s looking for terms that are in the target/child position of the relationship link,

type.$id = '125861e2-8f58-43d6-a8a6-7d25b8d524e0'means a specific relationship type, you’ll find it at https://<your-ataccama-base-URL>/organization/applicationSettings/relationshipType/125861e2-8f58-43d6-a8a6-7d25b8d524e0. You can replace this ID with any other relationship type ID from this list https://<your-ataccama-base-URL>/organization/applicationSettings/relationshipTypes 

source.$id = '15bbce34-0000-7000-0000-00000033052e'means that the query is filtering for the specific term in the source/parent position of the relationship, in this case Finance. You will replace it with your domain term ID.

Does this help? Please let me know if you have more questions!

Thanks ​@Lisa Kovalskaia I really appreciate your response. It never occurred to me to look at the URL to find the ID. Through further investigating within the platform I was able to determine what the logic was doing, and switched to names over IDs:

In my case I wanted to create a ‘Customer’ domain, so the logic -  name is "Customer" OR @termRelationship(target).any(type.name = 'ParentChild' AND source.name = 'Customer') did the trick. Now that I know to just lift my vision a little higher (to the URL) I’ll go back to using the ID’s to avoid any name changes breaking things down the track.

Thanks again. Have a great day.