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LY/T 2931-2017 English PDF

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LY/T 2931-2017: Classification regulation for forestry information products
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Basic data

Standard ID LY/T 2931-2017 (LY/T2931-2017)
Description (Translated English) Classification regulation for forestry information products
Sector / Industry Forestry Industry Standard (Recommended)
Classification of Chinese Standard B65
Classification of International Standard 65.020.40
Word Count Estimation 15,146
Date of Issue 2017-10-27
Date of Implementation 2018-01-01
Regulation (derived from) National Forestry Admistration Notice 2017 No. 18; Industry Standard Filing Notice No. 12 (Total No. 216)
Issuing agency(ies) State Forestry Administration

LY/T 2931-2017: Classification regulation for forestry information products

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Classification regulation for forestry information products ICS 65.020.40 B65 People's Republic of China Forestry Industry Standard Forestry Information Product Classification Rules Released on.2017-10-27 2018-01-01 implementation State Forestry Administration released

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard is proposed and managed by the National Forestry Information Data Standardization Technical Committee (SAC/TC386). This standard was drafted. Information Center of the State Forestry Administration, Institute of E-Government of Peking University, Investigation and Design Institute of the State Forestry Administration. The main drafters of this standard. Liu Junmei, Wen Zhanqiang, Bai Jiangli, Bai Ying. Forestry Information Product Classification Rules

1 Scope

This standard specifies the classification principles, classification methods, classification systems and code preparation requirements for forestry information products. This standard applies to the use and sharing of forestry information products.

2 Normative references

The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this article. Pieces. For undated references, the latest edition (including all amendments) applies to this document. GB/T 7027-2002 Basic principles and methods of information classification and coding GB/T 10113-2003 General terminology for classification and coding GB/T.20001.3-2001 Standards compilation rules Part 3. Information classification coding LY/T 2267-2014 Forestry basic information code preparation specification

3 Terms and definitions

The following terms and definitions apply to this document. 3.1 Forestry information products forestryinformationproducts Service products generated by forestry-related agencies in the information society for the purpose of storing, using and distributing forestry information, including figures Various types of documents, reports, atlases, multimedia, etc. in the form of the form. 3.2 Line classification methododoflinearclassification The classified objects are successively divided into several levels according to selected attributes (or features), and each level is further divided into several categories, the same point The same level class of the branch constitutes a parallel relationship, and the different level categories form a affiliation relationship. [GB/T 10113-2003, definition 2.1.5] 3.3 Surface classification methododofareaclassification Selecting several attributes or features of the classified object, and classifying the classified objects into a set of independent categories according to each attribute (or feature), each group The categories form a "face". Then arrange the "faces" in parallel in a certain order. When using, press the corresponding category in the "face" as needed. The specified order of "faces" is grouped together to form a new composite category. [GB/T 10113-2003, definition 2.1.6] 3.4 Mixed classification methododofcompositeclassification The line classification method and the surface classification method are used in combination, and one of the classification methods is mainly used, and the other is a supplementary information classification method. [GB/T 10113-2003, definition 2.1.7]

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