چكيده به لاتين
Selecting a project portfolio is a complex process involving many factors and considerations from the time it is porposed to the time the project portfolio is finally selected. Given that making a good selection is of crucial importance, it is essential to develop well-founded mathematical models to lead the organization to its final goal. To achieve this, such models have to reflect as closely as possible both the real situation of the organization as well as its targets and preferences. In this study, in the model of the problem of resource constraints, the interdependence of projects, the synergy between the sources of projects is considered simultaneously. However, since the process of selecting and implementing project portfolios occurs in real environments and not in laboratories, uncertainty and a lack of knowledge regarding some data is always an important issue due to the strong interdependence between the projects and the political, economic, social, and legal conditions in which they are carried out. Therefore, in this study, in the input parameters, such as the amount of resources used in each period, the minimum and maximum resources available for each period and the synergy between resources are considered uncertain. and because we could use the benefits and capabilities of fuzzy and robust concepts simultaneously, we used a new approach in this domain called a case robust possibilistic programming approach. In the end, with the two numerical and real examples, the problem model is validated.
