GB/T 40474-2021Banking application system—Guideline for handling with code and identifier (English PDF)
银行业应用系统 代码与编码处置指南
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Issued by
SAMR; SAC
Level / Type
National · Recommended
Issue date
July 20, 2021
Implementation date
February 1, 2022
Scope
GB/T 40474-2021 is the English-translated version of 银行业应用系统 代码与编码处置指南.
GB/T 40474-2021 gives guidance on how banking application systems should store, process and use codes and encodings, so that a later change to a code list or a coding rule does not force a large-scale rebuild.
Its introduction cites real cases, such as the marital status code moving from one to two digits and the resident identity card number growing from 15 to 18 characters.
It sets general principles and separate recommendations for newly introduced and existing codes and encodings, and an informative annex compares meaningful and non-meaningful coding.
It defines application system, code and encoding, and refers to GB/T 17710-2008 on check characters and ISO 17442-1:2020 on the legal entity identifier. It applies to building and upgrading banking application systems. It was issued on 20 July 2021 and has applied since 1 February 2022.
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Document preview — GB/T 40474-2021
National Standard of the People's Republic of China
- ICS
- 35.240.40
- Classification
- A 11
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
Contents
- Foreword
- Introduction
- 1 Scope
- 2 Normative references
- 3 Terms and definitions
- 4 General
- 5 Code
- 5.1 Newly introduced code
- 5.2 Existing code
- 6 Encoding
- 6.1 Newly introduced coding
- 6.2 Existing code
- Appendix A (informative) Comparison of meaningful and non-meaningful codes
- A.1 Advantages of meaningful coding
- A.2 Advantages of meaningless coding
Foreword
This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for Standardization Work Part 1: Structure and Drafting Rules of Standardization Documents" Drafting.
Introduction
In the construction of the application system, the code and encoding of the data may be used on both the server and the client to avoid possible data Inconsistency, improve processing efficiency. Judging from the development history of these codes and codes, as business volume changes and management needs increase, it is very It is possible to change the value range of the code, and it is also possible to change the coding rules.
Since entering the 21st century, my country's marital status code has been adjusted from the one-digit number stipulated in GB/T 4766-1984 "Marital Status Code" To the 2 digits specified in GB/T 2261.2-2003, the number of the resident identity card is specified by GB 11643-1989 "Social Security Number" The 15-digit number of the system is upgraded to the 18-digit number and letters specified in GB 11643-1999.
The field length and type of the code were designed directly according to the effective standards at that time, so after the standard upgrade, it led to a large-scale system transformation.
Therefore, this document proposes guidelines for handling data codes and encodings in application systems, when the data exchanged between banking application systems When code and coding change, it can effectively reduce the impact on business goals.
1 Scope
This document provides suggestions for storing, processing, using codes and coding in banking application systems.
This document is applicable to the construction and transformation of banking application systems. It is used as a reference for connecting with the bank and generating information exchange system.
Note: This document does not involve the attributes of data codes and encodings.
2 Normative references
The contents of the following documents constitute the indispensable clauses of this document through normative references in the text. Among them, dated quotations Only the version corresponding to that date is applicable to this document; for undated reference documents, the latest version (including all amendments) is applicable to this document.
GB/T 17710-2008 Information technology security technology check character system
ISO 17442-1:2020 Financial Services Global Legal Person Identification Number (LEI) Part 1: Assignment (Financial services - Legal entity identifier (LEI) - Part 1: Assignment)
3 Terms and definitions
The following terms and definitions apply to this document.
3.1 Application system
A system for collecting, storing, processing and presenting data through a computer. [Source: ISO/IEC/IEEE 24765:2017, 3.167]
3.2 Code
A set of rules that map elements of the first group to elements of the second group. [Source: ISO 18308:2011, 3.13]
Example: The code is actually a "keyword-meaning" correspondence table; it is clear how many "keyword-meaning" pairs exist, and each keyword is predefined of. GB/T 2261.1-2003, GB/T 2260-2007, and GB/T 12406-2008 are all examples of codes.
3.3 Encoding identifier; digital identifier
A compact sequence of characters related to numbers, non-numbers, or abstract physical characters. [Source: ISO 24622-1:2015, 2.9]
Example: Code actually gives a rule, and each code is generated according to this rule; it is clear at most how many codes can exist, but a certain code Whether it exists is not clear and may change dynamically. The citizen identification number of GB 11643-1999 is an example of encoding, and the Unified Social Credit Code defined by GB 32100-2015 is also an example of coding.
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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.
Referenced standards
Normative references
ISO 17442-1:2020
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