“信息超载”、“信息过剩”、“信息沼泽”、“信息迷雾”，随着信息量的骤然猛增，用来描述信息时代所带来的困惑的词汇也大量涌现。在刚刚过去的二十世纪的下半叶，人类生产信息的能力有史以来首次远远超过其处理信息的能力。人们迫切需要信息管理技术。随着信息浪潮的到来 Information overload, information overload, information marshes and information fog, with the sudden surge in information volume, have also emerged in large quantities to confuse the information age. In the second half of the twentieth century, just as recently as the past, the capacity of mankind to produce information far outweighed its ability to process information for the first time ever. People urgently need information management technology. With the wave of information coming