A layered architecture of PDES engine was proposed, and then the PDES persistence framework was described, whose performance mainly depends on the persistence library.

• 首先提出PDES引擎的层次结构并分析各层的功能，在此基础上提出持久框架的结构，重点研究持久框架的支撑模块-持久库对持久框架性能的影响。