Definition of common terms used in classification and coding

GB/T 10113-1988 General terminology for classification and coding GB/T10113-1988 standard download decompression password: www.bzxz.net

National Standard of the People's Republic of China
General terms for classification and coding
Definition of common terms used in classification and coding
Subject content and scope of application
This standard specifies the terms and definitions commonly used in the field of classification and coding standardization. This standard is applicable to the formulation and implementation of classification and coding standards, working guidelines and related documents. 2 General terms for classification
categoty
A collection of things (or concepts) with a certain common attribute (or characteristic). 2.2 Classification
clussification
unc 006
GB10113 --- 88
The process of distinguishing classification objects according to selected attributes (or characteristics) and grouping classification objects with a certain common attribute (or characteristic) together.
2.3 Objects of classification
objects of classification
Things (or concepts) to be classified.
2.4 Linear classification method
method of linear classification Classify the classification object into several levels one by one according to several selected attributes (or features), and each level is divided into several categories. The same level categories of the same branch form a parallel relationship, and the categories of different levels form a subordinate relationship. This classification method is called linear classification method
2.5 Area classification method
method of area classification Select several attributes (or features) of the classification object, and divide the classification object into a group of independent categories according to each attribute (or feature). Each group of categories constitutes a "surface". Then arrange each "surface" in parallel in a certain order. When using it, the corresponding categories in the relevant "surface" are combined according to the specified arrangement order of the "surface" as needed to form a new composite category. This classification method is called area classification method. 2.6 Superordinate category
category in higher level
In the online classification system, a category is called a superior category relative to the subordinate category directly divided from it. 2.7 Subordinate category
category in lower level
In the online classification system, the lower level category directly divided from the superior category is called a subordinate category relative to the superior category. Approved by the State Bureau of Technical Supervision on December 10, 1988 and implemented on August 1, 1989
2.8 Homogeneous categorybZxz.net
category in same level
GB10113
In the online classification system, the lower level categories directly divided from a category are called homogeneous categories. 3 General terms for coding
A character or a group of characters that represent a specific thing (or concept). Note: These characters can be Arabic numerals, Latin letters or other symbols that are easy for electronic computers and humans to recognize and process. 3.2 Coding
coding
The process of assigning codes to things (or concepts). 3.3 Numeric code
numeric code
A code composed of Arabic numerals.
Note: In order to enhance intuitiveness, some other symbols can sometimes be introduced, such as space, "\", "/", etc. 3.4 Alphabetic code
Alphabetic code
A code composed of Latin letters
Note: In order to enhance intuitiveness, some other symbols can sometimes be introduced, such as space, "一", "\", etc. 3.5 Alphanumeric code
Alphanumeric code
A code composed of a mixture of Latin letters and Arabic numerals. Note: In order to enhance intuitiveness, other symbols may be introduced, such as space, "一", "\", etc. 3.6 Nonsignificant code
Nonsignificant code
Code that only identifies the coded object and has no other additional meaning. 3.7 Significant code
Significant code
Code that has other specific meanings in addition to identifying the coded object. 3.8 Sequential code
Sequential code
Code that identifies the coded object in the order of Arabic numerals or Latin letters. 3.9 Alignment-sequence code
Alignment-sequence code code
According to the same or similar attributes (or characteristics) of the coded objects, the coded objects are divided into several groups. Then the sequential codes are divided into several corresponding series and assigned to each coded object group respectively. In the same group, the coded objects are encoded continuously. The code compiled in this way is called a series sequential code.
Note: Blank codes can be left in the code series when necessary. 3.10 Hierarchical code
layer code
A code composed of the subordinate hierarchical relationship of the coded objects. 3.11 Characteristic combination code
chararteristic block code
GB 10113-88
A code composed of code segments representing the basic elements of the attributes of things or the characteristics of concepts in a certain order. Note: Each code segment cannot be used alone.
3.12 Composite code
cornpound code
A code composed of several complete and independent codes. Note: It can represent multiple information of the coded object, and each component of the code can be used separately. 3.13 Equal length code
Equal length code
In the same code system, the code lengths of all coded objects are equal. This kind of code is called equal length code. 3.14 Code structure
code structure
The logical order in which the code characters are arranged.
3.15 Cardinal number of code
The number of code characters selected when compiling the code, such as the characters of the digital code are 0 to 9, and the cardinality is 10. 3.16 Code length
code length
The number of valid characters contained in a code. Additional remarks:
This standard was proposed by the China Institute of Standardization and Information Classification and Coding. This standard was drafted by the China Institute of Standardization and Information Classification and Coding. The main drafters of this standard are Zhao Nan, Kang Shuguo, Hu Jiazhang and Gong Xiangdong. 19
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