Problem description:
What is a gray document? What is the main difference between him and black literature?
Analysis:
"Grey literature" is the general name of a group of special types of literature. At present, there is no clear definition, and there are many titles, such as unpublished literature and unconventional literature. There are also documents translated into amorphous), hard-to-find documents, internal journals, underground documents and so on. In foreign countries, the word "grey literature" has a consistent trend and is accepted by most people. In recent years, this word frequently appears in professional journals in China. Although there are many names and forms, they have one common feature, that is, "gray literature" is generally considered as a non-public publication. Some of these documents are unprinted (printed and mimeographed), some are limited to some special readers, some are due to military, economic, commercial and scientific secrets, or the authors are unwilling to disclose their works, and publications involving intellectual property rights are limited to internal distribution. Therefore, "grey literature" refers to the conference literature that is not open and published in newspapers and periodicals; 2) unpublished * * * literature; 3) Dissertation; (4) unpublished scientific and technological reports; 5) Technical documents; 6) working documents; 7) Product information that is not released to the public; 8) enterprise documents; 9) Internal publications, that is, regular or irregular publications that subscribe to or partially give away reading exchanges; 10) unpublished manuscripts, including manuscripts, translations, academic communications, etc.; 1 1) trade documents, including product manuals and dynamic materials issued by market information agencies.
Although there are many kinds of "gray documents", their characteristics can be summarized as follows. First, the circulation channel is special. Some are circulated according to different classification requirements, some are limited by the way of document production, and some are published by * * * or non-profit organizations. The purpose of circulation is to give or exchange related publications, so the circulation is small, there is no advertisement in any form, and it does not join the ranks of formal publications; Second, there are various publishing forms, no fixed form, fixed name and fixed length, and few copies are produced, which is easy to be out of print; Third, it has special reference value. Although it is a non-public publication, it is no less valuable in research and information than an official publication. Although some studies are immature, they have unique insights, novel materials and large amounts of information. For example, the market research and forecast materials released by some information organizations contain a lot of price information, new product trends, changes in customer demand, the relationship between manufacturers and users, market analysis and so on. , is one of the main sources for enterprises to collect market information. There are many theoretical publications in "Grey Literature", such as Economic Forecast and Information, Problems and Discussions, which provide very useful information on price changes, price increase analysis and corporate debt fund recovery. The technical data in "grey literature", including investigation, design, test scheme, records, plans and drawings, is an important source of technical and competitive intelligence.