Abstract:
The paper discusses the problem of project portfolio scheduling subject to resource
constraints and fuzzy activity durations. Employees of various specializations are considered as the
only type of resource. Fuzzy W-algebra was used to avoid such difficulties and limitations of
traditional fuzzy arithmetics as the support size extension, the need of fuzzy
number comparison,
and some others. The proposed model provides a fuzzy estimation of project execution times and
optimal resource allocation. To solve the problem,
the genetic algorithm based on activity list representation was
implemented. The paper also provides a numerical example which
demonstrates advantages of applying the approach to organizations' workflow in the case of making
estimates for decision making under uncertainty.