The problem of Resource Leveling in Multi-Project Mode by Cuckoo Optimization Algorithm

Resource leveling is very important in projects and project managers always need a schedule based on the optimal use of resources needed to complete their projects. Most resource leveling research has been done in a single project, while in many organizations several projects are done simultaneously. For this purpose, a mathematical model is presented by all projects with the aim of minimizing changes in the level of different resources. Leveling and allocating resources is one of the most basic tasks of project management. Typically, project management uses specific methods such as GERT and PERT to plan and control the project (Boctor, 1990). Because the problem of resource leveling is an NP-complete problem and it is not possible to achieve the optimal solution in the general case (Guo et al., 2012), the cuckoo optimization algorithm has been used, which is one of the newest and most efficient evolutionary optimization methods.