20世纪末期，信息技术的发展促成了社会信息化和网络化的潮流，并由此带来了一场深刻的社会变革。多数专家认为，知识全球共享化将是21世纪的重要特征，信息和信息技术应用成为信息社会的主导。随之而来的是人们对信息和知识关注的上升，信息需求成为信息社会文明的标志之一， The late 20th century, the development of information technology contributed to the social information and networking trend, and thus brought a profound social change. Most experts believe that global knowledge sharing will be an important feature of the 21st century and that the application of information and information technology will become the dominant information society. With the rise of people’s attention to information and knowledge, information needs become one of the hallmarks of information society civilization.