With the rapid development of network and information technology, people's demand for knowledge and information tends to be diversified and comprehensive, and it has become the trend of today's society to use the network to carry out information exchange and service. As an important information institution in the whole society, how can the library meet the increasing information needs of users and provide complete and fast services? With the popularity of electronic publications, more and more information producers have the opportunity to provide information services directly to users, which breaks the advantage of library's document service position and makes the library face severe challenges. The following is what I have carefully prepared for you: the research and analysis of digital library resources construction, the content is for reference only, welcome to read!

The full text of the research and analysis of digital library resources construction is as follows:

Digital library is the development direction of library. This paper analyzes the resources of digital library in China, and puts forward some problems existing in the resources construction of digital library in China and their solutions.

Keywords:: digital library resources

Nowadays, the world has entered the information age. While we are constantly changing and innovating this society, we are also enjoying the convenience and speed brought by the digital society, and the digital library is one of them. The so-called digital library is a library that uses digital technology to process and store all kinds of illustrated documents, which is essentially a decentralized information system for multimedia production. In order to carry out the necessary resource construction of digital library, we need to take certain measures to make the information integration of digital library more orderly, so as to provide higher quality services.

First, the status quo of digital library resources construction

Compared with the traditional library, the digital library is not easy to be damaged, easy to store, small in information storage space, fast in remote transmission, convenient to enjoy information resources, convenient in information query and search, and able to store some precious national materials in digital form more conveniently and for a long time. However, the digital library still faces some problems at present.

1. Information resources are difficult to store.

The biggest problem faced by digital library is the difficulty of information resource storage. Information resources are constantly increasing massively, but the technical ability of management, backup and storage of these massive resources is limited, and it is still necessary to improve the picture retrieval technology, human-computer interaction technology, multilingual retrieval, data exchange between different data standards and the software and tools needed by digital libraries, which needs further development of science and technology.

2. Repeated construction of information resources

In the process of digital library construction, it is easy to cause repeated construction of information resources. Because paper resources and digital resources are relatively independent, they can't complement each other, and they can't check the data one by one, so digital libraries will buy a lot of digital resources in the process of construction to expand the number of information resources. In this process, whether other libraries have been built successfully or have been completed is not considered, but digital resources are just built blindly, which will easily lead to a lot of waste of human and financial resources and the problem of repeated construction of information resources.

3. Information resource demand, * * * enjoyment dilemma

Traditional library services are limited, while digital library services have broken the original restrictions and effectively extended traditional library services. However, with the development of the times and technology, information users require libraries to provide better information services such as personalization, diversity, continuity and effectiveness. In order to ensure the security of data resources in the server and the effective execution of the server, the digital library limits the maximum number of service responses and the number of access terminals of the server to a certain extent, but it also causes the bottleneck of server access restriction. Because there are many differences in data construction between different libraries, the data between libraries are not well connected, which seriously restricts the enjoyment of information resources and affects the service quality provided by libraries for information users.

Second, the advantages of the cloud computing era to the construction of digital library resources

Cloud computing has powerful data storage function and network service function, which solves the technical heterogeneity problem of digital library, reduces the storage space cost of library and improves the human-computer interaction function. Cloud computing integrates, organizes, associates and navigates digital resources by combining distributed storage database and one-stop search interface, which realizes network expansion suite service and solves the problem of repeated construction of information resources. At the same time, cloud computing provides more diversified services to improve the information service efficiency of digital libraries. "Cloud" can expand the suite at any time, get it at any time, use it on demand and pay for it. Cloud computing has the characteristics of virtualization, large scale, security, reliability, universality and expansion suite.

Its wide application enables readers to enjoy the powerful computing power, people-oriented service and lower cost brought by library resources. Cloud computing can not only meet the needs of users, but also process and feed back the information they need in time, providing users with the needs of organizing and managing information resources. Users' data and computing power come from the Internet center, providing users with customized computing and storage services. Through the organization and matching of "cloud", the most professional and effective information resources and services are fed back to the user interface, so that Internet readers can enjoy reading conveniently, quickly and comprehensively. At the same time, we should continue to strengthen the research on cloud computing technology, so that the technology will continue to develop, and research and develop the standardization, openness, confidentiality level, security efficiency and integrity of enterprises of cloud computing technology, and adhere to the sustainable development route, so as to form effective management of the library industry and provide legal protection for the security and legitimate interests of library materials.

Third, the strategy of digital library resources construction in the era of cloud computing

In 2009, cloud computing technology was formally applied to library resource management with its powerful computing power and the advantage of mass storage of data, and cloud computing technology also brought a brand-new and profound change to library management, service mode and service content. Unified identity authentication, strict control of access permission, formulation of relevant standards, policies and regulations, etc. are all the latest technical means that modern digital libraries can adopt to protect the legitimate rights and interests of libraries and data security.

1. Ensure the safety of data storage and implement the latest technical means.

In order to ensure the storage safety of library materials, both libraries and service providers should adopt the most advanced, safest and effective technical means to ensure the information safety of digital libraries to the maximum extent. For libraries, it is necessary to make timely and comprehensive backups of all kinds of collection materials, or to store them reliably and effectively for a long time. For service providers, the advanced virtual mass storage technology can be used to manage and store data resources. This technology uses data copy to fault tolerance, and the availability and access efficiency of data are improved by creating multiple copies for each virtual disk, without complicated device restrictions. Moreover, because it uses mapping and verification technology to tolerate faults, the virtualized mass storage technology needs to maintain the same data in two different devices, and even if the main device is damaged, it can be switched immediately and accessed through the mapping device.

2. Ensure service security and strictly control access permission.

In order to ensure the security of library services, access permission must be strictly checked. In the cloud environment, digital library can divide users into several levels from low to high. According to the different information needs of users, the access permission of resources is also strictly controlled. Digital library can adopt PMI licensing management and control technology with good effect at present. This technology is based on PKI system, which verifies the permission right of users when they request services, and provides all users with application-related authorized services, thus ensuring the secure communication between users and service providers. PMI is authorized to manage the digital library. After logging in to the "cloud", ordinary users need to perform data query according to the roles assigned in advance, while users who play the role of administrators and undertake library data maintenance will be assigned the corresponding operation permission after logging in to the system. Users need to call the application service to complete the corresponding specific data maintenance work, and need to verify the relevant information that has been successfully sent to the specific application service for inspection. To strictly control users' access to resources, we can also combine PMI permission management and control technology with single sign-on unified identity authentication. Digital library gives different access permissions to resources according to different user levels, and the two match each other. At the same time, in order to provide effective protection for the security of data and services, cloud computing resources can be divided into multiple layers for control and management according to physical and logical aspects.

3. To achieve feasible and efficient access control, identity authentication needs to be unified.

In order to ensure the security of library services, it is necessary to implement unified identity authentication. Unified identity authentication can improve users' access efficiency to the greatest extent, and meet the open characteristics of digital libraries. Because only authorized users who have passed the authentication can access all the resources of the "cloud", user authentication plays a very important role in data security in the cloud environment. In the cloud environment, digital libraries can use single sign-on unified identity authentication. Authorized users can enter and access "cloud" resources after only one authentication, and will not be required to authenticate before using every cloud resource because of the cross-organizational, heterogeneous and dynamic characteristics of the cloud computing environment.

4. Meet the requirements of data confidentiality and improve the information security facilities.

In order to meet the confidentiality requirements of library materials, it is necessary to improve the information security infrastructure in order to establish a safe network execution environment. Public key technology, digital authentication, certificate issuing authority and security policy about public key all constitute public key infrastructure. As the core of information security infrastructure, public key infrastructure is a system and platform for public key encryption and digital signature services. In order to use encryption and digital signature technology more conveniently in the digital library under the cloud environment, only by building and perfecting PKI technology can the confidentiality, validity and integrity of the data placed in the "cloud" be guaranteed, and the content of digital information resources will not be peeked, denied or illegally tampered with by unauthorized persons during storage and transmission.

5. Ensure the safety and legality of data and improve national laws and regulations and policies.

In order to ensure the information security and legal rights of the library, we should try our best to improve the relevant national standards and regulations and policies. Library industry managers can organize standards and research related protocols for the application of cloud computing, because digital libraries should have their own relatively independent and perfect industry standards and specifications for the application of cloud computing. Because some data security and confidentiality issues are related to national policies, the management policies, corporate reputation or national policies of cloud computing enterprises may have a certain impact on the security of cloud computing data. Therefore, in order to promote the introduction and improvement of relevant management standards and regulations and policies, only through continuous negotiation, running-in and research can every stakeholder in the entire industrial chain continue to develop and benefit, protect the intellectual property rights of digital information resources, and pursue relevant responsibilities.

The service mode and function of digital library have been greatly improved. In the process of digital library construction, only by fully considering the interests and relationships of libraries, cloud computing providers, users, third-party auditors and other parties, and rationally configuring various security attributes, can the security of this huge and complex system be guaranteed, and a reasonable and complete security framework of library cloud computing can be built. With the in-depth study of cloud computing technology, the digital library of cloud computing will be continuously improved and better developed.

IV. Conclusion

To sum up, with the development of digital technology and the arrival of the cloud era, the digital library needs to be further improved to adapt to the development of this era and continue to benefit us. Therefore, the relevant staff need to rationally configure the various security attributes of the digital library and take measures to ensure the procedures for the construction of digital library resources, so as to continuously promote the construction and development of digital libraries. ?