Robert E. Brent, Bountiful, program manager of the World Class Skating Club of Utah, has been invited to serve as a world-class score compiler at the 1988 World Artistic Roller Skating Championships Oct. 12-15 at the Pensacola (Fla.) Civic Center. It is the 33rd edition of the World Artistic Championships but only the fourth time they've been held in the United States.