Literature is the knowledge recorded through the carrier, the appendage of words and languages, and the material form. From ancient times to the present, the carriers are bamboo slips, paper, magnetic tape, magnetic disk, optical disk and so on. Scientific and technological literature is the general name of all works that record, preserve, communicate and disseminate scientific knowledge and ideas.
Its classification includes: ① Original vouchers are original vouchers. ② Secondary literature. Processing on the basis of literature is often called. Search tool? , such as table of contents, indexes, abstracts, etc. ③ Three documents. Collect original materials (first-class documents) through retrieval tools (second-class documents) and process them into comprehensive documents, such as reviews, reviews, yearbooks, guides, etc. ④ Zero-level documents. Non-written oral information, or materials such as manuscripts, that is, there is no communication carrier.
As can be seen from the above, the review is not a first-class document, nor an abstract, index or bibliography of papers, nor a second-class document, but a product of a highly concentrated document, which is made up of a number of related documents. Therefore, review is an effective way to obtain information, promote scientific research and guide practical work, because it contains a lot of information and can quickly reflect academic trends.
2. Characteristics of literature review
There are three kinds of reviews: status review, achievements review, retrospective review, dynamic review and thematic review. Its characteristics are as follows: ① The source of information is to make other people's articles into their own articles. The research object is literature, not people or animals. ③ The content covers a wide range and the information is concentrated and refined. (4) Narrative expression, based on facts, and making appropriate comments on the basis of full possession of information. ⑤ Many references and strong reference.
The above is Bian Xiao's sharing of the classification and characteristics of literature review. I hope it helps your friends. If you want to know more about graduation thesis, please pay attention to this platform. Bian Xiao will arrange and publish it in time.