 Cumulative Voting and Score Voting are similar. The important difference is that Cumulative Voting requires that the sum of the grades assigned to the candidates by each voter is the same.  The next procedure, proposed by Balinski and Laraki 2010 (cf. Bassett and Persky 1999 and   the discussion of this method at rangevoting.org),  selects the candidate(s) with the largest median grade rather than the largest mean grade. 