数字保存的持续完整性风险检测

Persistence Risk Check for Digital Preservation

针对数字保存风险之一的持续完整性风险设计检测方法,并针对检测方法进行实验研究。(1)调研相关文献,找出研究的切入点;(2)界定持续完整性的含义,析出产生持续完整性风险的因素;(3)设计持续完整性风险型元数据,设置该类风险的检测点;(4)基于一个实际保存系统,利用分层随机抽样法,采集数字对象及其持续完整性风险型元数据内容的实验样本;(5)编制代码,检测数字对象样本集的持续完整性风险点,统计检测结果,分析可能的产生原因,制定可能的降低风险措施;(6)基于实验结果,分析检测方法的局限性,说明检测方法的使用事项。

In this paper,a method for checking the persistence risk which is the digital preservation is designed and then is tested.Firstly,reviewing related literature,and finding the research point of the study.Secondly,defining the persistence of the digital preservation,and analyzing and getting factors which produce the persistence risk.Thirdly,designing the metadata of the persistence risk,and setting the check points for this kind of risks.Fourthly,selecting a preservation project,and collecting the experimental samples of the digital objects and metadata of the persistence risk for each digital object by using stratified sampling.Fifthly,compiling the code,checking the points of persistence risk for the sample set of the digital objects,counting the test results,analyzing the reasons,and formulating the measures to reduce the risks.Finally,based on the check result,analyzing the limitations of the checking method,and illustrating some issues about how to use the check method.