Project management methodologies describe the way of working and communicating, and represent the principles and processes in order to manage a project. This paper focuses on three project management methodologies, which are named waterfall, agile, and lean six sigma to provide a multi-dimensional view of success factors. It presents an intuitionistic fuzzy cognitive map (IFCM) application to evaluate the importance degrees of performance indicators of these project management methodologies. The cause-and-effect relationships among concepts; uncertainty, vagueness, and hesitation in data lead to utilize an intuitionistic decision aid approach to assess the performance criteria of project management frameworks.