Like many of the important placements of its citizens in Lois Lowry's novel, The Giver, the Assignments for the Ceremony of Twelve was given by the Committee of Elders. The Committee of Elders also presided over the Matching of Spouses and the Naming and Placing of new children. The Assignments were based on several factors, including disposition, energy level, intelligence and interests. These factors had to interact perfectly with the Assignments (or spouses) and they had to achieve a balance. Some of the Elders' Assignments proved to be surprises, especially in Jonas' case.