Data Transformation Engine Type Designer Reference Guide

Type Designer Reference Guide
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Chapter 3 - Type Trees
This chapter introduces the basic concepts of type trees.
A type tree defines the entire contents of at least one input from which you intend
to map or to which one output you intend to map. For example, one type defines
the entire file; another type defines the entire record contained in that file. Other
types in the same type tree define the data fields of the record.
Basic Steps to Create a Type Tree
A definition must exist for each piece of data. The data definitions are defined in
type trees.
To create a type tree
1 Identify the data objects in your data.
2 Create a new type tree.
3 Create types for each different kind of data object in your data.
4 Define the properties of each type.
5 Create component lists.
6 Define component rules, if needed.
7 Define item restrictions, if needed.
8 Analyze and save the tree.
Creating a New Type Tree
A type tree file has a file name extension of .mtt. The name of the type tree
appears in the title bar of the type tree window. Each type tree file contains only
one type tree.
Before you actually create a type tree, you should be familiar with the
specifications that define your data.