First, the definition
The digital library is a mass digital information resource group that can be searched across high-speed broadband networks and can be searched across the library. It collects valuable information such as images, texts, voices, videos, movies, software and scientific data. Digital processing, storage and management, value-added knowledge, and web-based electronic access services.
Second, the case
Based on the above criteria, Zhongyi has successively implemented digital library management systems in many libraries, such as: Jiangxi Provincial Library, Wuhan University, East China Normal University, East China University of Science and Technology, Nanchang University, Jiangxi University of Finance and Economics, Jiangxi Police College, Huazhong Agricultural University, China University of Petroleum, China University of Mining and other libraries.
Third, the effect
In the university library, the billion-dollar digital library management system has realized multimedia information collection, digital processing, storage, scientific management and efficient output schemes of various documents. In the digital processing, in particular, all kinds of data collection, such as ID card, library card, reading card and other hard paper, card information collection, graduation design, papers, etc. A4, A3 format document high-speed input, old Large-format images such as newspapers and comic strips, and output schemes for each format...
The distinguishing features of digital libraries are:
· digitization of various information (documents, journals, books, newspapers, papers, music, videos, etc.);
· Storage and management of massive data;
· Effective access and query of data;
Digital materials are published and delivered online. The development and establishment of digital libraries is the result of the combination of computer, communication and network technologies, mass storage technology and multimedia technology, and also introduces a large number of database technologies and concepts.
The library storage system needs to store data information for the following:
1. Database: MS SQL and Oracle database are generally used, the amount of data is not large, generally within a few GB, and the data increment is not large.
2. E-books: mainly text file storage and reading, the file size is generally 32KB--64MB, the existence form is static, the capacity growth is less than 5% per year;
3. Video information: VCD/DVD format including movie data, MPEG2/4 format, stored in large file format, streaming media read. File size is generally 80MB --5GB;
4. Electronic journals: mainly based on text file storage and reading, the file size is generally 32KB--64MB, the existence form is dynamic growth, and the growth rate is linearly fixed;
5. Other electronic information materials: including audio materials, master papers, self-built resource libraries, teaching parameters, etc., stored as files, read by streaming media or files, the file size is generally 32KB--40MB
In the library, the management and operation of the database is the core issue. All e-books, journals and multimedia data are stored in the mass storage system. The storage system is the support point of the entire digital library.
According to the characteristics of the data in the library, the data application characteristics of the digital library are analyzed. With the gradual deepening of the digitalization process of the library, the application system of the library is more and more, and the environment becomes more and more complicated, which increases invisibly. The difficulty of the library management staff management system. At the same time, with the continuous increase of application systems, the data has also increased correspondingly, which puts higher requirements on the original storage system.
In general, the focus of library informatization is: how to meet business continuity requirements:
·Key system performance
·The key service does not stop
·Key data is not lost
in conclusion:
In essence, the digital library is a huge data warehouse integrating the database application platform, the information resource e-commerce platform and the resource digital processing service platform. With the Internet as the platform, it provides content-based for the teachers and students and external Internet users in the university. service.
At the same time of product installation, we will train the user management personnel on the system of software use, and work with the library to train the final readers to use the e-books to ensure that users can use the product fully and efficiently, and maximize the value. .
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