A decision support tool for project portfolio management with imprecise data

摘要

The paper aims to present a project portfolio scheduling process, taking into account imprecision in activity duration and cost. Data specification in the form of discrete α-cuts enables the connection of distinct and imprecise data, and the implementation of a constraints satisfaction problem with the use of constraint programming. Moreover, using a-cuts, optimistic, pessimistic, and several intermediate scenarios concerning the project scheduling and cost can be obtained and considered in terms of different risk levels. The problem formulation in terms of a constraint satisfaction problem allows its implementation in constraint programming techniques and facilitates the development of a decision support tool.