After you add objects to the mapping specification, you can edit the objects in the mapping specification. You can add sources, rules, filters, lookups, or joins to a mapping specification. You can search for data objects when you add a source or lookup to a mapping specification. You can also search for reusable rules when you apply a rule to a mapping specification. You can compile a rule specification as a reusable rule and then add it to a mapping specification.

If you create a mapping specification without a target, the Analyst tool creates an empty target. You can edit the target to configure the target fields. You can validate the mapping specification to verify that the mapping specification has no errors.

After you add objects to a mapping specification, the Analyst tool maps a relationship from the object columns to the target columns. You can remove the relationship between the columns.

You can also run an SQL query against source or target columns in a mapping specification to view the query results in a data preview.