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On the Latest Times and Float Times of Activities in a Fuzzy Project Network with LR Fuzzy Numbers

Author

Listed:
  • V. Sireesha

    (GITAM University, India)

  • N. Ravi Shankar

    (GITAM University, India)

  • K. Srinivasa Rao

    (GITAM University, India)

  • P. Phani Bushan Rao

    (GITAM University, India)

Abstract

In this paper, the authors propose a new method to compute the fuzzy latest times and float times of activities for a project scheduling problem with fuzzy activity times. The authors have considered LR fuzzy numbers to represent the activity times. As the data of the problem are LR fuzzy numbers, the authors have shown that the results are also in terms of LR fuzzy numbers. Total float time of each activity can be found by this method without using the forward pass and backward pass computations. The authors use an example to illustrate the method. This paper shows the advantages of this method over the existing methods with great clarity. The proposed method illustrates its application to fuzzy critical path problems occurring in real life situations.

Suggested Citation

  • V. Sireesha & N. Ravi Shankar & K. Srinivasa Rao & P. Phani Bushan Rao, 2012. "On the Latest Times and Float Times of Activities in a Fuzzy Project Network with LR Fuzzy Numbers," International Journal of Fuzzy System Applications (IJFSA), IGI Global, vol. 2(2), pages 91-101, April.
    • Handle: RePEc:igg:jfsa00:v:2:y:2012:i:2:p:91-101
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