Aimed at the limitation of workflow description with MCM and CLM, it addes the start node, end node and multiple instances node to MCM, suspend node and compensate node to CLM.

• 针对该建模方法在工作流描述方面的不足,在原有的基础上,对MCM增加了开始、终止和多实例化活动等建模元素,对CLM增加了中断、补偿状态等建模元素;