Oh, wow; never seen that page before. Even has some systems I hadn't heard of yet.
This particular system (Merrill) is called Social Styles. The table compares it to the IT, IF, ET, EF groups. For the S's, this is true, but for the N's, it's really IJ, IP, EJ, EP. Hence the Interaction Styles, which Berens even likens to Social Styles. Another similar one that is left out is called "Personality Styles" (Thinker, Director, Socializer, Relater).
The table also compares them to "Thinker", "Feeler", "Director" and "Intuitor" as "Jung's" types. Where did they get "Director" from? Never heard of that fronm Jung. And they have "intuitor" as the Sanguine. The Sanguine is more a Sensor.
Here is my grand table of all the systems I knew about: