You created a mapping specification with two sources. When you created the mapping specification, you performed a normal join between the sources. You edited the target to map the source columns to the target columns and added a new row in the target to define the column properties for a new column. You renamed a row to match the name of a target table column. You added a simple filter to a target column. You created a rule for another target column. You also validated the mapping specification during the development cycle. Finally, you loaded the results of the mapping specification to the target data object.