A concept suggested by Ron Edwards for levels of player involvement: (1) The player's social role in terms of his character -- the mom, the jokester, the organizer, the placator, etc. (2) The character's thematic or operational role relative to the others -- the leader, the brick, the betrayer, the ingenue, etc. (3) The character's in-game occupation or social role -- the pilot, the mercenary, the alien wanderer, etc. (4) The character's specific Effectiveness values -- armor rating, weapon attributes, specific skills and their values, available funds, etc.

References:

• The class issue