The Detail component represents a table that contains the junction or associative tables that join an Instance to the Classes. Detail tables describe, date, quantify and qualify the relationships that exist between an Instance of an BusinessObject or Item and Organizations, Persons, Activities, Locations, Properties or other BusinessObject and Items. The Detail component belongs in an application database. (data model).

Detail tables manage all of the relationships to an Instance. If you look at the data model you can see that this component joins the summary or heading data found in the Instance component to members of the other Classes.