WITNESS环境下基于改进型IDEF3方法的离散事件仿真建模

针对WITNESS仿真环境下，复杂离散事件仿真建模过程中出现的大量顺序、并行、同步、冲突及因果依赖等关系，提出采用改进型IDEF3方法进行仿真建模．采用仿真规则与交汇点集成、行为单元与仿真信息数据集成的原则进行建模；同时在IDEF3方法的基础上，建立新的行为单元，达到了仿真单元的可重用和可重构性，大大提高了仿真建模的速度，减少了建模难度．最后，给出了在改进型IDEF3方法下进行离散事件仿真的框架，并在仿真软件WITNESS的基础上，通过实例详细描述了建模过程．

Simulation Modeling of Discrete Event Based on the Improved IDEF3 Method Using WITNESS Software

An improved IDEF3 method was presented to describe a great lot sequence, paralleling, synchronization, conflict and consequence relation during discrete event simulation using WITNESS software. Integrated principles of semantic methods and simulation rules of junction along with integrated methods of information data and units of behavior were put forward for the reconfiguration and reuse of simulation units. New behavior units were also advanced to simplify the modeling process. At last, a framework of simulation and dispatching rules were given based on the improved IDEF3 method. The detailed modeling process was demonstrated through WITNESS simulation software. The methods could improve greatly the speed of simulation modeling and decrease the difficulty of modeling.