GB/T 39105-2020 PDF English
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| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivery | Name of Chinese Standard | Status |
| GB/T 39105-2020 | English | 355 |
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Consumer product traceability - Data element directory for traceability system
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GB/T 39105-2020: Consumer product traceability - Data element directory for traceability system---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBT39105-2020
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 35.040
L 72
Consumer product traceability - Data element
directory for traceability system
ISSUED ON: OCTOBER 21, 2020
IMPLEMENTED ON: OCTOBER 21, 2020
Issued by: State Administration for Market Regulation;
Standardization Administration of PRC.
Table of Contents
Foreword ... 3
Introduction ... 4
1 Scope ... 5
2 Normative references ... 5
3 Terms and definitions ... 5
4 Representation of data element ... 6
5 Data element model ... 8
6 Directory of data elements ... 8
7 Usage and extension of data element ... 9
Appendix A (Informative) Directory of data element ... 10
References ... 31
Consumer product traceability - Data element
directory for traceability system
1 Scope
This standard specifies the data element representation, data element model,
data element catalog, data element usage and extension of the consumer
product traceability system.
This standard applies to the database construction, data exchange and sharing
of consumer product traceability systems.
This standard does not apply to products such as food, medicine, cosmetics,
tobacco, special equipment, aircraft, ships, military products.
2 Normative references
The following documents are essential to the application of this document. For
the dated documents, only the versions with the dates indicated are applicable
to this document; for the undated documents, only the latest version (including
all the amendments) are applicable to this standard.
GB/T 18391.1-2009 Information technology - Metadata registries (MDR) -
Part 1: Framework
GB/T 18391.3 Information technology - Metadata registries (MDR) - Part
3: Registry metamodel and basic attributes
GB/T 35248-2017 Consumer product safety - Guidelines for suppliers
3 Terms and definitions
The terms and definitions defined in GB/T 18391.1-2009 and GB/T 35248-2017
as well as the following terms and definitions apply to this document. For ease
of use, some terms and definitions in GB/T 18391.1-2009 are listed repeatedly
below.
3.1
Data element
4.3 Data format
In the data format of data elements in this standard, the meanings of the
characters used are as follows:
a = alphabetic character
n = numeric character
an = alphanumeric characters
m (m is a natural number) = m characters of fixed length
..ul = text of indeterminate length
..p,q (p,q are all natural numbers) = the longest p numeric characters, q digits
after the decimal point
.. = From the minimum length to the maximum length, wherein the minimum
length is appended to the front and the maximum length is appended to the
back
YYYYMMDDhhmmss = "YYYY" means the year, "MM" means the month, "DD"
means the date, "hh" means the hour, "mm" means the minute, "ss" means the
second, which can be combined according to the actual situation.
Example 1: an5(aannn) means 5 alphanumeric characters of fixed length,
wherein the first 2 are alphabetic characters, the last three are numeric
characters.
Example 2: n..17,2 means up to 17 numeric characters, with two digits after the
decimal point.
Example 3: an3..8 represents an alphanumeric character of variable length with
a maximum length of 8 and a minimum length of 3.
7 Usage and extension of data element
7.1 Usage of data element
Including direct use and derived use:
- Direct use: It may directly use the data element to carry out the design of
the database or information exchange format;
- Derived use: Enterprises and (or) related organizations of different product
categories can limit data elements and generate new data elements
according to the characteristics of products and technological processes.
Compared with the original data element, the derived data element shall
not appear contradictory in the definition, data type, data format, value
range and other attributes. For example, "production date" is derived from
the data element "date".
7.2 Extension of data element
The data element can be extended according to different consumer product
categories and technological process characteristics. The representation of
extended data elements shall comply with the provisions of Chapter 4, allowing
more stringent restrictions on the attributes of data elements. For example,
attributes that are optional in this standard may be mandatory after extension.
......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
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