Basic TR, Intermediate TR, Advanced TR

Term Relationships (TR) Term Relationships are used to describe a set of reference tools in the library world, eg. Broader Term, Narrower Term, Related Term. In other contexts these terms occur in an Equivalnece Relationship Display. SUMS, in its Knowledge Packages, uses Personal Related Terms. Term Relationships plus Personal Related Terms, Variant Names and Translations are called TR in SUMS.