When you select or create a mapping specification, it opens in the
Design
workspace. You can develop the logic for a mapping specification on the
Column Mapping
panel.
The following mapping specification properties appear on the
Column Mapping
panel:
Source Column
Lists source table name and column names.
Transformation
Lists which source column has a relationship with a target column. Lists which source, rule, aggregator, lookup, and join column has a relationship with a target column.