Procedures for resource leveling and net present value problems in project scheduling with general temporal and resource constraints

This paper deals with resource-constrained project scheduling problems with nonregular objective functions where general temporal constraints given by minimum and maximum time lags between activities are prescribed. In particular, resource leveling and net present value problems are studied. We present different heuristic and exact procedures for (approximately) solving those problems. A detailed experimental performance analysis shows that these procedures also solve large problem instances in reasonable computing time.