GB/T 39223.4-2020Ergonomic requirements for healthy home—Part 4: Children's desks and chairs (English PDF)

3.1 Ergonomics

Human Factors

A scientific discipline that studies the interaction between humans and other elements in the system, and applies theories, principles, data and methods to design to optimize

Professional in the quality of human life and overall system performance.

Note. This definition is consistent with the definition given by the International Ergonomics Society.

[ISO 26800.2011, definition 2.2]

3.2 user experience

People's feelings and reactions to products, systems, or services that they use or expect to use.

Note 1.User experience includes all the user's emotional response, trust response, preference response, sensory response, physical and psychological before, during and after use

Response, behavior and performance, etc.

Note 2.User experience refers to the brand image, appearance characteristics, functional characteristics, system performance, interactive behavior and auxiliary functions of the interactive system.

Attitudes, skills, and personality characteristics are the result of the comprehensive effects of the internal psychological and physical state, and the use of situations.

Note 3.From the perspective of the realization of the user's personal goals, usability may include the kind of perceptual and emotional content that is very relevant to the user experience. Availability

Criteria can be used to evaluate all aspects of user experience.

[ISO 9241-210.2019, definition 3.15]

3.3 Desktop height

The height of the desktop near the chest edge from the ground.

[GB/T 3976-2014, definition 3.2] […]