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GB/T 44811-2024Internet of things—Data quality evaluation methods (English PDF)

物联网 数据质量评价方法

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Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

October 26, 2024

Implementation date

May 1, 2025

Scope

GB/T 44811-2024 is the English-translated version of 物联网 数据质量评价方法.

GB/T 44811-2024 is the Chinese national standard covering the data coming off connected devices, scored instead of assumed good — the evaluation framework and the definition of the data in scope, the quality check against accuracy, consistency, completeness, standardization, timeliness and accessibility, the business and data weight analysis that decides which of those indicators counts most for the use at hand, the calculation of the check and composite scores, and the institutional, technical, system and security guarantees. First edition. In force from 1 May 2025. Issued on 26 October 2024, it has been in force since 1 May 2025.

Document preview — GB/T 44811-2024

National Standard of the People's Republic of China

ICS
35.240.01
Classification
L 70

Issued by: State Administration for Market Regulation; Standardization Administration of the PRC

Contents

  • Preface... III 1 Scope1
  • 2 Normative references1
  • 3 Terms and Definitions1
  • 4 Evaluation framework1
  • 5 Data Scope Definition2
  • 6 Data quality check2
  • 6.1 Evaluation Indicators2
  • 6.2 Matching Rules3
  • 6.3 Inspection Implementation3
  • 7 Weight Analysis3
  • 7.1 Overview3
  • 7.2 Business Weight Analysis3
  • 7.3 Data Weight Analysis4
  • 8 Evaluation result calculation4
  • 8.1 Overview4
  • 8.2 Quality Check Score Calculation4
  • 8.3 Evaluation Index Score Calculation4
  • 8.4 Calculation of comprehensive evaluation score4
  • 9 Evaluation guarantee5
  • 9.1 Institutional Guarantee5
  • 9.2 Technical Support5
  • 9.3 System Assurance5
  • 9.4 Security Assurance5
  • References6

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 for standardization documents" Drafting is required.

Please note that some of the contents of this document may involve patents. The issuing organization of this document does not assume the responsibility for identifying patents.

This document was proposed and coordinated by the National Technical Committee for Information Technology Standardization (SAC/TC 28).

This document was drafted by: China Electronics Standardization Institute, CGN Intelligent Technology (Shenzhen) Co., Ltd., Guangdong Power Grid Co., Ltd., China Electronics Information Industry Group Co., Ltd., China Petrochemical Corporation, Beijing Satellite Environmental Engineering Research Institute Institute, China Southern Power Grid Co., Ltd., Beijing Tongniu Information Technology Co., Ltd., Qingdao Xinbit Electronic Technology Co., Ltd., Zhejiang Digital Economy Development Center, Inner Mongolia Autonomous Region Big Data Center, China Unicom Digital Technology Co., Ltd., Shanghai SoftChina Information Technology Co., Ltd.

Company, Hainan Power Grid Co., Ltd., Guoxin Youyi Data Co., Ltd., China Academy of Space Technology, Shenbang Intelligent Technology (Qingdao) Co., Ltd., China Telecom Group Finance Co., Ltd., Xingyao Energy (Beijing) Technology Co., Ltd., Beijing Quanlu Communication Signal Research Institute Research and Design Institute Group Co., Ltd., Zhejiang Panshi Information Technology Co., Ltd., and Zhejiang Fangxin Standard Technology Co., Ltd.

The main drafters of this document are: Wang Weizhong, Chen Weixiong, Zhang Chaochao, Wang Chuntao, Jiang Nan, Li Manli, Li Bing, Gao Liwei, Wang Ruiqi, Wang Ao, Li Huan, Chen Bing, Li Zhichun, Chen Xi, Chen Yali, Chen Jinbao, Xia Hu, Li Caihong, Zhou Yuhan, Yang Lin, Zhang Jun, Zhang Yin, Zhang Shaoze, Zhang Hongqiang, Wang Min, Wang Guorui, Pei Qiugen, Chen Bin, Yang Qiuyong, Fu Limin, Guo Tianxu, Lu Junjuan, Zhang Zeqian, Jia Xiaojie, Song Boyu, Wang Lan, Liu Guojie, Wang Zhiyong, Bai Xue, Zhu Shurui, Hu Zhiheng, Shen Zhongyi, Wu Junwei, Zhang Lei, Feng Caochong, Chen Yongjin, Wang Yi, Li Aotie, Cai Zhi, Dong Weiwei, Guo Wei.

IoT data quality evaluation method

1 Scope

This document describes a data quality assessment method for IoT application scenarios.

This document is applicable to guide the establishment and review of data quality evaluation processes throughout the entire life cycle of IoT data.

2 Normative references

This document has no normative references.

3 Terms and definitions

The following terms and definitions apply to this document.

3.1 Data quality

The degree to which the characteristics of data meet stated and implied requirements when used under specified conditions.

[Source. GB/T 36344-2018, 2.3]

3.2 dataset

A collection of data that has a certain theme, can be identified and can be processed by computer.

[Source. GB/T 36344-2018, 2.6]

3.3 data lifecycle

The process of transforming raw data into actionable knowledge.

3.4 Quality evaluation procedure

Operations used to apply and report quality assessment methods and results.

4 Evaluation framework

In the IoT application scenario, data quality evaluation is based on evaluation assurance and is carried out through data scope definition, and the accuracy, Data quality is checked based on indicators such as consistency, completeness, standardization, timeliness and accessibility, and the weights are analyzed and evaluated.

The implementation process of data quality evaluation mainly includes data scope definition, data quality inspection, weight analysis, and evaluation result calculation.

and evaluation guarantee, as shown in Figure 1.

......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.

Editions of GB/T 44811

EditionTitleRevisionStatus
GB/T 44811-2024Internet of things - Data quality evaluation methodscurrent editionCurrent

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