Data Transformation Engine Map Designer Reference Guide

Chapter 4 - Input and Output Cards Card Overview
Map Designer Reference Guide
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Each input of data and each output of data requires content definition settings.
The content of each card is specified as a type in a type tree.
The input card displays in the From window and contains
the complete definition of an input for the map including:
• Source identification
• Retrieval specifics and
• The behavior that should occur during processing
The output card displays in the To
w
indow and contains the complete
definition of an output for the map
including:
• Target identification
• Destination specifics
• The behavior that should occur
during processing
Card Overview
Each map may contain none or more input cards and one or more output cards.
The maximum number of input cards in a map is 100. The maximum number of
output cards in a map is 100.
Each card represents one data object, identified by selecting a type from a type
tree. A card may represent an object in a row, a row in a record, the entire record,
or the entire file.
Each card specifies a type tree and a type as part of the card definition. This type,
and the type tree that contains it, is the link between the Type Designer and the
Map Designer that defines the structure and properties of the data in the card.
♦ The input card represents input data. Input data validation occurs in the Type
Designer.
♦ The output card represents output data and contains the map rules that
transform that data. Therefore, only the output card has a rule column.