Check with your Vision Administrator for further details. The goal of the examples in this section is to illustrate some techniques that support complex classification requirements. The examples in this section use the class Region .
Some regions can aggregate into larger regions.
The Classification class is used to manage entity classes whose instances are primarily used for grouping purposes and which may aggregate into other instances of the same class. Classes such as Industry and Region are normally created as subclasses of Classification . The property parent is defined at Classification and is used to store a reference to another instance of the class that represents the parent instance. The isParent message returns TRUE if the recipient is its own parent instance. The first step is to define a new property at the Company class which will be used to store the value of a company's primary region.