K. Usha Madhuri

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In this paper, a new fuzzy linear programming model is proposed to find fuzzy critical path and fuzzy completion time of a fuzzy project. All the activities in the project network are represented by trapezoidal fuzzy numbers. A new representation of trapezoidal fuzzy number is introduced to reduce the constraints in the fuzzy linear programming model.(More)
This paper presents Linear programming models to calculate fuzzy earliest and fuzzy latest events time in project scheduling problem with L-L fuzzy numbers as activity times. The solution methodology is to apply a combination of Zadeh's extension principle and linear programming model. The membership function of earliest and latest times of events are(More)
In a fuzzy project network, the higher risk path is called possible critical path. Secondary critical path is one of the possible critical path in fuzzy project network and it plays an important role in the project scheduling, risk analysis and time-cost trade-off problems in fuzzy environment. In this paper, triangular fuzzy numbers are used to express the(More)
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