Data Transformation Engine Map Designer Reference Guide

Map Designer Reference Guide
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Chapter 1 - Introduction
The Map Designer is a client component of the Design Studio used to develop
maps defining input and output specifications and mapping rules that perform
data transformation as desired.
Overview
The Map Designer uses the definitions of data stored in the type trees (that are
created using the Type Designer) to specify the transformation logic in the form of
map rules. Map rules operate on input data objects and build output data objects.
The map can be built for specific platforms, and then run on that platform to
perform the transformation of the data.
During the design phase, you build and run maps from within the Map Designer on
a Windows platform. You can view the results of a map in the Map Designer. You
can also use the Map Designer to build a map to be run on another platform.
Using the Map Designer
In order to use the Map Designer, you must already have the type tree(s) that
define your data. The Map Designer uses the data object definitions that are
stored in those type trees.
The Map Designer is used to:
♦ Create maps to specify the logic necessary to transform the input data to the
desired output data.
♦ Identify the source and data objects of the input data.
♦ Validate and resolve the source data type properties defined in the Type
Designer.
♦ Identify the target and data objects of the output data.
♦ Specify and build the output data according to the map rules.
♦ Provide information about data validation by generating trace files.
♦ View the run results of the map execution.
After defining data objects and their properties in the Type Designer, you define a
map in the Map Designer where map cards specify the input source and the output
target.