文献老化的共时与历时观察比较研究

The study and analysis on the same-time and along time observation of literature obsolscence

摘要: 对国内外关于文献老化的共时与历时观察研究进行了评述，并对存在的问题加以分析和探讨，认为两种观察从不同侧面反映了文献老化的真实性，共时观察具有普遍性，反映了文献老化的即时状态，历时观察具有针对性，反映文献老化的过程

Abstract: This paper reviews the state of study on the same-time and along-time observation of literature obsolscence and analysis and approaches the existing peroblems.It holds that the two kind of obsolscence in a different way.The same-time observation has universality and represents the forthwith state of literature obsolsvence, while the along-time observation has its peculiar reference and reflects the process of Literature obsolscence.