Goal: The issue of resource allocation is a major concern for project engineers in the scheduling process project. Resources over-allocation are often seen practice after project, which makes unhelpful. Modifying an over-allocated schedule very complicated and requires lot effort time. Besides, during resource-constrained projects constructing companies, managers should more than one objective ...

Multi-Mode Resource-Constrained Project Scheduling is an NP-hard optimization problem intensively studied due to its large area of applications. This paper concentrates on the evolutionary approaches to Multi-Mode Resource-Constrained Project Scheduling based on permutation encoded individuals. A new recombination operator is presented and a comparative analysis of several recombination operato...

This paper presents an exact model for the resource investment problem with generalized precedence relations in which the minimum or maximum time lags between a pair of activities may vary depending on the chosen modes. All resources considered are renewable. The objective is to determine a mode and a start time for each activity so that all constraints are obeyed and the resource investment co...

The resource-constrained project scheduling problem is to find a schedule that minimizes the project duration subject to precedence relations and resource constraints. To further account for economic aspects of the project, one may add an objective of cash nature to the problem. In addition, dynamic nature and variations in real world are known to introduce uncertainties into data. Therefore, t...

In this paper, a novel mathematical model for a preemption multi-mode multi-objective resource-constrained project scheduling problem with distinct due dates and positive and negative cash flows is presented. Although optimization of bi-objective problems with due dates is an essential feature of real projects, little effort has been made in studying the P-MMRCPSP while due dates are included i...

This paper addresses the multi-mode multi-skilled resource-constrained project scheduling problem. Activities of real world projects often require more than one skill to be accomplished. Besides, in many real-world situations, the resources are multi-skilled workforces. In presence of multi-skilled resources, it is required to determine the combination of workforces assigned to each activity. H...

Construction companies are required to employ effective methods of project planning and scheduling in today's competitive environment. Time cost critical factors success, they can vary based on the type amount resources used for activities, such as labor, tools, materials. In addition, resource leveling strategies that limit fluctuations a project's consumption also affect time cost. The multi-...