A component based software system model (CBSSM) and an application framework model (CFM) is represented. CBSSM and CFM are models based on Petri Net and to serve for software components classification and retrieval.

• 提出了以Petri网理论为基础,以软构件分类与检索为目标的基于构件的应用软件系统三层模型CBSSM和软件框架模型CFM。