Model Mapper

Overview

The Meta Integration Mapping tool is used to create mappings between model formats within the repository, resulting in mapping formats.

There are two different types of mapping formats that the mapper can generate:

• Mapping Format
  which is used to define stitchings between models that refer to identical phycial data structure, or more logical mappings descriptions between dissimilar model formats
• Data Movement Format
  which is used define the actual data movement mappings and transformations that will be used to generate C++ code that will migrate data from one or several source data stores to a destination data store. The data stores may be accessed via ODBC, XML or via other supported API's.

Creating a model mapping object

The first step in the data migration process is to import the two (or more) models that will be used in the mapping, into the repository. Then you will need to create a mapping format that will store the data mapping information. To create the mapping format you first need to create the product/version combination beforehand for his new mapping product. Then select the version and right click to select the Mapping Format entry in the Add sub-menu. After having created the mapping format, for each source model, select its model format and copy it to the clipboard; then paste it on the mapping format by selecting the Source menu item in the Paste link sub-menu. To add the destination model select the model format of the destination model and copy it to the clipboard; then paste this model format on the Mapping Format by selecting the Destination menu item in the Paste link sub-menu. You can also drag a model format and drop it on the mapping format.
This result is in the following diagram.

Fig. 1. A model mapping with two models

What we can see above is that a mapping format is created under the product Sample Mapping with the version 1.0. Click on the open entry in the popup menu of the mapping format object. This will also open the source and destination models. If this is a previously saved version, the mapping is loaded from the database, otherwise a new mapping is created and displayed in the mapping window