How to handle a subset of data with Data Pump (external link)

Lately I found a great article in the theme http://dataworks-inc.com/import-a-subset-of-table-columns-using-oracle-data-pump, which nicely fulfils a common sense ways like creating mviews (or even views when 12c is in context) or load firstly to temporary tables and then copy to or exchange with the target objects.