Data Transformation Engine Design Studio Tutorial

Chapter 6 - Using the OR Function with a Lookup File Using the Type Designer
Design Studio Tutorial
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Using the Type Designer
Create a type tree for the following lookup file of preferred customers.
ABC Co./\35abc/\970322
Sand Inc./\529heu/\970912
Andromeda Co./\577ecc/\960506
The data structure of this lookup file must be defined in a type tree.
The type tree for the lookup file must have item types for:
♦ Company Field
♦ ID Field
♦ PurchaseDate Field
The type tree for the lookup file must have the following group types:
♦ Customer - represents customer records
♦ PreferredFile - represents the file containing customer records
Using Type Inheritance
When types have common properties, take advantage of the inheritance feature.
When a type is created, it inherits the properties from which it stems.
The field item types described above can be created as subtypes of the Field item
type. Since these field types have common properties, create the Field item type