Tien-Fu
Liang
Hung-Wen
Cheng
Ping-Yen
Chen
Kuan-Hsinung
Shen
Department
of Industrial Engineering and Management
Hsiuping
Institute of Technology
11
Gungye Road, Dali City
Taichung,
Taiwan 412
R.O.C.
This
study aims to develop an interactive fuzzy linear programming (FLP) method for solving
the project crashing decision problems with fuzzy variables. The proposed method
attempts to minimize total project costs with reference to direct costs,
indirect costs, duration of activities and budget constraints in a fuzzy
environment. A numerical example demonstrates the feasibility of applying the
proposed FLP method to a project crashing decision problem. A fuzzy optimal
solution for decision variables can be obtained using the proposed method.
Furthermore, the proposed method provides a systematic framework for facilitating
the decision-making process, enabling a decision maker to interactively modify the
fuzzy data and related model parameters until a satisfactory solution is
obtained. In particular, several significant characteristics of the proposed
FLP method for making the project crashing decisions, which differentiate it
from other models, are demonstrated by considering a numerical example.
Keywords:
Project
crashing decisions, fuzzy linear programming, fuzzy variables, fuzzy sets
theory.