以总结存在问题和把握研究时机的需要为目的,将信息老化研究分成三个阶段:文献信息老化研究、知识老化研究和网络信息老化研究,并对每一部分作了针对性的论述,大致展示了国内信息老化的状况。 In order to summarize the existing problems and grasp the need of research timing, the research of information aging is divided into three stages: the research of aging of literature information, the research of knowledge aging and the aging of network information, and the specific discussion of each part, The status of domestic information aging.