Model of project planning based on Fuzzy-Timing Petri Nets

Due to the time uncertainty of activities and the absence of evident and formal description of network planning, A new model is proposed based on the Fuzzy-Timing Petri Nets(FTPN). On the basis of the formal definition of fuzzy triangle number and FTPN; we introduce the FTPN firing rules project planning modeling and fuzzy time computational rules. According to the description and time computation of a simple example, we draw the feasible conclusion that FTPN may be used to solve project planning with uncertain time.and the FTPN express is direct and specific.