Predicting project time and costs using earned value management based on trapezoidal fuzzy numbers

Projects include activities that must be carried out at certain dates, with specified costs and determined qualities in order to satisfy the stakeholders. Project control is one of the most important and widely used issues in project-based organizations and it has attracted a lot of attention. So far, in the field of project control, there have been a lot of research that were done in different ways, which illustrates the application and importance of this issue. A significant point in all projects is the prediction of project time and costs. This will give project managers an opportunity to accurately evaluate the time and cost of completion of projects, and to minimize the delay in project completion and the budget deficits through more detailed project planning. This research aims to predict the project time and cost using the trapezoidal fuzzy number based on earned value management. This method can be used in the situations in which the conditions are uncertain and the percentage of real progress and program work are expressed in linguistics and qualitative manner. Finally, in this paper, the presented method has been applied in a real numerical example.