Electromagnetism (EM) is integrated with multi-objective evolutionary algorithms (MOEAs).
Performance of EM integration to NSGA-II, SPEA2 and MOEA/D for RCPSP is compared.
Employment of EM to NSGA-II is the most effective.
EM does not improve the performance of MOEA/D on RCPSP.
Explanation of why EM heuristics plays different roles in the studied algorithms is given.