– This paper aims to construct for the first time a link between the project members' assignment and personality balance.
– This study develops a project assignment quantitative model that maximizes the team's personality balance while meeting the capability requirements.
– The findings indicate that a more balanced project team that contributes to project performance can be obtained before project starts.
– This paper is limited to the exploration of Belbin's personality types. However, it offers a generic approach that can be applied to other personality categorization.
– The paper helps practitioners form a personality balanced project team to improve the project performance by reducing the complexity of project communication and problem solving.
– The paper develops for the first time a project assignment model that considers both capability and personality and allocates project personnel in such a way that the most suitable personnel is selected from a group of qualified capable candidates, to increase the possibility of success for the project.