Data Transformation Engine Type Designer Reference Guide

Chapter 1 - Introduction Hierarchy of a Type Tree
Components
Group objects consist of other objects. An object that is part of another object is
called a component. Components are added and viewed in the group window.
Groups and categories may contain components.
For example, the item type Field is a component of the group type Record.
Hierarchy of a Type Tree
The types in a tree are arranged in a hierarchy. If a type is subordinate to another
type, it is called a subtype. The type on the branch stemming above a specific
type is called its supertype. The following example illustrates this hierarchy.