Level 1 is described as descriptive BPMN, which can be used for high-level modeling with a restricted palette of BPMN constructs.
层次1说明为描述性bpmn，它采用BPMN构件的限制性调色板对高层建模。
2
This paper discusses in detail the three aspects of KADS modeling method, which are the main characters, the formal descriptive language, and the realizing environment of KADS modeling method.