Getting Started with InfoSphere Data Architect

Chapter 8 – Model Mapping and Discovery 151
Relationships within a mapping model are color-coded. The color codes are determined by the settings in
the Preferences window, in the Mapping Editor page (found under the Data Management node).
Note that the relationships you created are in blue or light blue, depending on whether the relationship is
selected. Within the workbench, these are considered to be accepted mappings and are an approved part
of the mapping model. Discovered mappings are in gold if they are not selected, and they appear to be
brown if you select them.
You select mappings to approve or reject them. If you reject a mapping, the mapping line disappears from
the mapping model.
First, you will approve a couple of relationships manually. Then, you will inspect the remaining
relationships and determine whether to accept the mappings.
To accept or reject discovered relationships:
1. Select the mapping for the STUDENT.LAST_NAME relationship. The mapping line changes to a
brown color, and the discovered mapping displays in the Properties view.
2. Right-click on the mapping and select Accept Mapping, as shown in Figure 8.8.
Figure 8.8 – Manually accepting a relationship
The mapping line color changes to blue.
3. Use the method outlined in steps 1 and 2 above to approve the mapping for the
STUDENT.STUDENT_SSN and STUDENT.EMAIL_ADDR mappings.
4. Save your work.
At this point, you probably realize that with large data models, this can be a tedious process. Now that
you are familiar with how to accept or reject mappings manually, you can view the remaining mappings
and determine whether to accept all of the proposed mappings.
5. Expand all of the table nodes in the Source and Target panes. The editor should look like the
image in Figure 8.9.