Digital library has no accurate and strict definition, let alone strict standards, so its construction has no fixed rules to follow. Generally speaking, a digital storage system that integrates different types of digital resources and provides readers with retrieval, reading and downloading can be called a digital library.

If you have strong technical strength, you can apply for funds to purchase resources, and then make your own search portal; If your technical strength is not strong, you can also find a company that integrates digital resources and ask them to help you integrate resources and develop websites. Of course, it will cost a little more. But in any case, the construction unit must have its own clear and definite plan.

Conditions required by the construction unit: internal network, Internet connection, servers (the number depends on the resources purchased and the number of users), disk arrays (even less if remote access to full-text data is selected), and websites (servers, pages, background programs ...).

Superstar, Wanfang, China HowNet, scholars, VIP ... all have related resources for sale, but superstar companies that can probably integrate resources and help users develop and build digital libraries do more. The digital resources of Wanfang, CNKI and VIP are also quite good.