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GB/T 43441.3-2026Information technology - Digital twin - Part 3: Information exchange (English PDF)

信息技术　数字孪生　第3部分：信息交互

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Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

January 28, 2026

Implementation date

August 1, 2026

Scope

GB/T 43441.3-2026 is the English-translated version of 信息技术　数字孪生　第3部分：信息交互.

GB/T 43441.3-2026 is the Chinese standard "Information technology - Digital twin - Part 3: Information exchange". Its scope clause reads: This document presents a conceptual framework for digital twin information interaction, specifying measurement and sensing, feedback control, service invocation, and data processing within this framework.

Requirements for output, interaction within digital entities, and interaction between digital entities. This document applies to the development, application, and services of digital twin-related systems or products. Its clauses include terms and definitions.

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Document preview — GB/T 43441.3-2026

National Standard of the People's Republic of China

ICS: 35.240.01
Classification: L 67

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

Preface
Introduction
1.Scope
2 Normative References
3.Terms and Definitions
4.Abbreviations
5.Conceptual Framework for Information Interaction
6 Measurement and Sensing
6.1 Interactive Content
6.2 Interaction Methods
6.3 Technical Requirements
7 Feedback Control
7.1 Interactive Content
7.2 Interaction Methods
7.3 Technical Requirements
8 Service Invocation
8.1 Interactive Content
8.2 Interaction Methods
8.3 Technical Requirements
9.Data Output
9.1 Interactive Content
9.2 Interaction Methods
9.3 Technical Requirements
10.Interaction within digital entities
10.1 Interactive Content
10.2 Interaction Methods
10.3 Technical Requirements
11 Interaction between digital entities
11.1 Interactive Content
11.2 Interaction Methods
11.3 Technical Requirements
Appendix A (Normative) Information Structure for Digital Twin Information Interaction
Appendix B (Normative) Information Interface for Digital Twin Information Interaction
References

1 Scope

This document presents a conceptual framework for digital twin information interaction, specifying measurement and sensing, feedback control, service invocation, and data processing within this framework.

Requirements for output, interaction within digital entities, and interaction between digital entities.

This document applies to the development, application, and services of digital twin-related systems or products.

2 Normative references

The contents of the following documents, through normative references within the text, constitute essential provisions of this document. Dated citations are not included.

For references to documents, only the version corresponding to that date applies to this document; for undated references, the latest version (including all amendments) applies.

This document.

GB/T 43441.1-2023 Information Technology - Digital Twins - Part 1.General Requirements

3 Terms and Definitions

The following terms and definitions apply to this document.

3.1 target entity

Real-world entities selected for digital mapping.

[Source. GB/T 43441.1-2023, 3.2]

3.2 digital entity

Digital mapping of the target entity.

[Source. GB/T 43441.1-2023, 3.3]

3.3 digital twin

Digitization of a specific target entity with a data connection that ensures synchronization between the physical and virtual states at an appropriate rate and accuracy.

Express.

[Source. GB/T 43441.1-2023, 3.4]

3.4 Information exchange

Information exists between digital entities and target entities, between digital entities and service applications, and within and between digital entities.

The process of acquiring, transmitting, and using.

3.5 digital model

By digitally mapping the internal and external characteristics, behavioral patterns, and relationships of the target entity, a mapping is formed that corresponds to the target entity.

The corresponding digital abstract description.

[Source. GB/T 43441.2-2026, 3.3, with modifications] […]

......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 13 pages — is available in the English PDF.

Referenced standards

Normative references

GB/T 43441.1-2023Information technology—Digital twin—Part 1: General requirements

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