Householding
Householding is a general term that means reducing the number of members in the current audience level by scoping using another audience level.
One of the most common examples of householding is to identify a single individual to target within each household. You might select one individual per household according to a marketing business rule such as:
*
*
*
*
You can use the Audience process to change audience levels and filter IDs according to user-specified criteria.