Data Transformation Engine Map Designer Reference Guide
Chapter 1 - Introduction  Installation 
Map Designer Reference Guide 
14 
Installation 
This product is installed as one of the components of the Mercator installation 
program. Refer to the Getting Started book for details about the installation 
program or removing this product from your system. 
Basic Steps for Building the Desired Output Data 
Building the desired output data consists of two main steps: 
1  Defining the data definitions in the Type Designer. 
2  Creating maps in the Map Designer. 
Define Data Objects and Properties 
The type trees are maintained in the Type Designer, although type trees can also 
be created using the Type Tree Maker, the Importer Wizard in the Type Designer, 
and the Database Interface Designer. 
To define data definitions 
1  Use the Type Designer, Type Tree Maker, or Importer Wizard to create or 
generate a type tree file. The file name extension of type tree files is .mtt. 
2  Define the type properties of input and output data. 
3  Specify restrictions of input data for item types. 
4  Specify desired validation of input data in component rules. 
5  Save and analyze the type tree file (.mtt). 
Create Maps to Specify Sources and Targets 
After defining data objects and their properties in the Type Designer, define the 
map in the Map Designer where you specify the source of the input and the target 
of the output. Sources and targets are specified with map cards. Each map can 
have none or more input cards, and one or more output cards. 
To create maps using the Map Designer 
1 
Create a map source file. The file name extension of map source files is .mms. 
2  Create required executable map(s) in the map source file (.mms). 
3  Create an input card that represents your input data. 










