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Fuzzy model for calculating safe float in network planning

CHEN Hao guang, CHEN Qing hua, ZHANG Rong (Institute of Command and Technology, Beijing 101416, China)  
In this paper, a new concept of finish time membership function for activities in network planning is put forward and its two operators discussed in consideration of the uncertainty of activity duration. Furthermore, an approach for calculating the safe float is given, by which the influence of the potential uncertainty in network could be reflected rationally.
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