Based on the analysis of information models of OAIS,the authors discuss some practical issues in realizing information models in CEDARS,DSEP,DIAS and other digital archiving systems.

• 在对OAIS的信息模型进行分析的基础上,研究了CEDARS,DSEP,DIAS等几个数字长期保存系统中信息模型的具体实现问题;