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Fuzzy critical path analysis based on centroid of centroids of fuzzy numbers and new subtraction method

Author

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  • P. Phani Bushan Rao
  • N. Ravi Shankar

Abstract

This paper proposes a new method to solve fuzzy critical path problems for a project network with activity times being normalised trapezoidal fuzzy numbers. The prime idea of this paper is to propose a new method to find the maximum and minimum of fuzzy numbers which can be applied to find the fuzzy earliest starting times and the fuzzy latest finish times. This method replaces the extended subtraction operation by a new subtraction operation to find fuzzy latest finish times. An example with activity times being trapezoidal fuzzy numbers in previous studies is solved successfully to demonstrate the validity of the proposed approach.

Suggested Citation

  • P. Phani Bushan Rao & N. Ravi Shankar, 2013. "Fuzzy critical path analysis based on centroid of centroids of fuzzy numbers and new subtraction method," International Journal of Mathematics in Operational Research, Inderscience Enterprises Ltd, vol. 5(2), pages 205-224.
    • Handle: RePEc:ids:ijmore:v:5:y:2013:i:2:p:205-224
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