From the perspective of document storage, the traditional library's collection carrier is mainly paper documents. Compared with it, the influence of digital library on collection construction is firstly manifested in the expansion of the meaning of library "collection", including not only different information formats (such as disks, CDs, tapes, etc.). ), but also includes different types of information (such as bibliographic information, full-text information, images, audio and video, etc.). ), so that digital libraries are no longer subject to physical space.
In terms of retrieval methods, with traditional retrieval methods, readers often spend a lot of time in front of many cards, which makes borrowers feel inconvenient and it is difficult to improve recall and precision.
Judging from the speed of information transmission, traditional libraries have fixed locations, and readers often spend a lot of time on their way to the library. Digital library can use the Internet to transmit information quickly. Readers only need to log on to the website and click the mouse to see the information they want to consult in a few seconds, even though it is thousands of miles away from Qian Shan, where the library is located. This convenience is unmatched by previous libraries.
From the perspective of resource sharing, a book can be lent to many people at the same time through the server, which greatly improves the efficiency of information use. (1) waste of resources
Since the concept of digital library was put forward, many university libraries have devoted themselves to the construction of digital libraries. In just a few years, due to the lack of unified planning and coordination, the standards of digital libraries are different, and the relevant legislation has not been formulated and implemented, so it is difficult to find a balance between the interests of all units. At the same time, some units unilaterally pursue the number of digital resources with the idea of "quick success and instant benefit". Some units ignore the characteristics of their own collections and the actual situation of school teaching, resulting in the blind construction of digital libraries in many universities in China, and the phenomenon of less cooperative construction and scattered management is not uncommon. The user retrieval interface, retrieval language and management system of digital libraries are very different. The databases of different libraries are incompatible with each other, and it is difficult for each system to communicate and apply. A lot of financial resources, manpower and material resources are wasted on low-level redundant construction.
(2) Information copyright.
With the rapid development of computer technology, automation technology and network technology, it is easier to convert the format of literature resources, copy, download and pirate digital works, and the intellectual property protection of digital works is more complicated and prominent than traditional paper documents. According to the copyright law, uploading a work must obtain the consent of the copyright owner. However, it is difficult for a digital library with a huge resource pool to obtain the authorization of every copyright owner. In the relevant legislation of digital library, those outdated laws and regulations that are inconsistent with its own construction and development characteristics can no longer be applied.
(3) the problem of construction funds
The construction of digital library is a huge, systematic and long-term project. The purchase of hardware equipment and software resources, network wiring engineering, personnel training, digital resource updating, digital conversion of library documents, etc. All need sufficient funds as the backing, but the lack of funds is a long-standing problem that puzzles the development of university libraries. There are special funds for the construction and development of digital libraries in key universities that entered the "2 1 1 Project". However, ordinary university libraries have a single source of funds, mainly relying on school funds, and the prices of books and periodicals have soared, which makes it difficult for many libraries to maintain basic funds such as paper document procurement, professional training, scientific research and awards every year, and it is even more difficult to carry out digital library construction.
(4) The quality of librarians.
The general situation of university librarians in China is that their professional knowledge and skills generally cannot meet the requirements of digital library development. With the rise of digital library, the practical problems such as lack of professional and technical personnel, low work enthusiasm and aging librarians are more prominent. Because the status of the library has never been paid enough attention, it seems that ordinary librarians and teachers in major universities are at two completely different levels and are treated completely differently, which makes the library rarely give priority when choosing a job. This is also an important reason why it has been difficult for university libraries to introduce high-quality talents, while on the other hand, noodle restaurant talents have jumped ship to find another job. It is difficult to improve the quality and professional level of librarians because of the lack of systematic and planned on-the-job learning and training for existing librarians. The outdated knowledge structure and concept can not meet the requirements of providing mathematical information resources services and can not be ignored.