Yes, it was developed by the character in the book called Demontheses (spelled right?) the four categories were Utlaning, which I think is a member of your own species but from another country (i.e. planet in the book) Framling I'm not for sure........
Raman is a member of another species, but is intelligent and capable of communication and peaceful reasoning. Varelse is the 4th term and is like raman, except for the fact that they cant not be reasoned with and are dangerous.

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"Human curiosity and the desire to make the intangible tangible, has led us into a new age where the New World has been settled, and the West has been won. But if you think that we, the human race, has conquered everything there is to conquer, then just look to the sky--at space--last and greatest of the frontiers."