چكيده به لاتين
Because of limited resources, organizations, often, have to make crucial decisions regarding selection and scheduling of a project portfolio among the candidate projects. A poor decision might affect the organization in two ways: First, by wasting the organization’s resources (monetary cost), investing them in weak and non-strategic projects and second, by losing the opportunity to invest the resources in more profitable projects (opportunity cost). Hence, selecting a rich portfolio has been always an important role of project managers. In real life, the selection is complicated by uncertainty in input data. In this research, a two-stage model for portfolio project selection in fuzzy condition is presented; in the first stage by using fuzzy bi-polar PROMTHEE method, alternatives are ranked and in the second stage alternatives with higher rank, concerning restrictions are selected and scheduled. Some limitations such as budget, resources, and scheduling constraints have been considered in this case; also ascending and descending effects may the projects have on profit and risk and costs are being allocated. Uncertain variables are used to describe project parameters.
