In the world of George Orwell's Nineteen Eighty-Four, The Party which controls Oceania is split into two halves: the Inner Party and the Outer Party.

The protagonist of the novel, Winston Smith, is a member of the Outer Party as are most of the other characters we meet, though he does interact with a few proles (always a subject of disgust for Party members). The Outer Party represents the middle class in Oceanic society, bureaucrats who do most of the actual work in the Party government and its four ministries. Its members can be identified by their blue coveralls.

Goldstein's book explains the rationale behind the class divisions.