# human–computer interaction

> academic discipline

**Wikidata**: [Q207434](https://www.wikidata.org/wiki/Q207434)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Human–computer_interaction)  
**Source**: https://4ort.xyz/entity/humancomputer-interaction

## Summary
Human–computer interaction (HCI) is an academic discipline that studies the interaction between people and computers. As a part of computer science, it is an interdisciplinary field that also incorporates aspects of psychology and design. The primary focus of HCI is to understand and improve the way humans use and are affected by computer technology.

## Key Facts
- **Primary Classification:** Human-computer interaction is an academic discipline, an academic major, and a subfield of computer science.
- **Common Acronym:** The field is commonly known by the acronym HCI.
- **Interdisciplinary Nature:** It is considered a facet of both psychology and design, in addition to its roots in computer science.
- **Core Subject:** The field is the study of interactivity, focusing on the relationship between humans and computers.
- **Subfields:** HCI has numerous subfields, including Gender HCI, Feminist HCI, 3D interaction, mobile interaction, and human-AI interaction.
- **Related Concepts:** The discipline examines concepts such as cognitive friction, the digital stress threshold, and personalization.
- **Standard Identifiers:** Its Library of Congress Classification is QA76.9.H85, and its 2012 ACM classification code is 10003121.

## FAQs
### Q: What is human-computer interaction (HCI)?
A: Human-computer interaction, or HCI, is an academic discipline focused on the design and use of computer technology, specifically the interface between people (users) and computers. It is a subfield of computer science that also draws heavily from psychology and design.

### Q: What are some subfields of HCI?
A: HCI encompasses many specialized areas of study, including 3D interaction, mobile interaction, human-robot interaction, human-AI interaction, Gender HCI, and usable privacy and security.

### Q: Is HCI just about computer science?
A: While HCI is a subfield of computer science, it is highly interdisciplinary. The provided material identifies it as a facet of both psychology and design, emphasizing its focus on the human element of technology use.

## Why It Matters
Human-computer interaction (HCI) is a critical field because it focuses on the human side of technology. It bridges the gap between the technical capabilities of computers and the cognitive, physical, and social needs of the people who use them. By drawing on computer science, psychology, and design, HCI seeks to make technology more usable, accessible, and effective. The field addresses fundamental challenges like reducing "cognitive friction" and understanding the "digital stress threshold" to create interfaces and systems that are intuitive rather than frustrating. As technology becomes more integrated into every aspect of life, from mobile devices to artificial intelligence and robotics, the principles of HCI are essential for designing safe, efficient, and positive interactions. Its many subfields, such as usable security and human-AI interaction, tackle specific, high-stakes problems, ensuring that technological advancements serve human goals and well-being.

## Notable For
- **Interdisciplinary Foundation:** HCI is distinct for its formal integration of computer science with other fields, specifically psychology and design, to create a holistic view of technology use.
- **Focus on the User Experience:** The field is defined by its deep concern for the user, studying concepts like "cognitive friction," "personalization," and the "digital stress threshold" to improve the quality of human-computer relationships.
- **Broad and Evolving Scope:** HCI covers a vast range of topics, from traditional command-line interfaces to modern 3D interaction, human-robot interaction, and emerging areas like Human-AI Relationality (HAIR).
- **Practical Application in Security:** HCI has a dedicated subfield for usable privacy and security, applying its principles to make critical security features in applications more effective and easier for end-users to manage.

## Body
### Classification and Scope
Human-computer interaction is formally classified as an academic discipline, an academic major, and a subfield of computer science. Its scope is inherently interdisciplinary, as it is also considered a facet of psychology and design. The core of the discipline is the study of interactivity between humans and computers. It is widely known by the acronym HCI.

### Subfields and Related Concepts
HCI encompasses a wide and growing range of specialized research areas and concepts.

*   **Interaction Modalities:** This includes the study of different ways users interact with computers, such as the text-based **command-line interface**, **3D interaction** in three-dimensional space, **multimodal interaction** using multiple input/output types, and **Mobile interaction**.
*   **Human-Agent Interaction:** This area focuses on interactions with autonomous or semi-autonomous agents. It includes **human-robot interaction** and the growing field of **human-AI interaction**. A related concept is the **human-computer match**, an event featuring both human and AI competitors.
*   **Social and Critical Perspectives:** Subfields like **Gender HCI** and **Feminist HCI** analyze human-computer interactions through specific social and critical lenses to address issues of equity and design.
*   **Usability and Security:** This critical sub-discipline includes **human–computer interaction in security** and the broader field of **usable privacy and security**, which aim to improve the usability of security features in end-user applications.
*   **Cognitive and Psychological Concepts:** The field investigates user-centric psychological phenomena, including **cognitive friction** (mental resistance to an interface), the **digital stress threshold**, and **baby duck syndrome** (a user's tendency to prefer the first system they learn).
*   **Emerging Areas:** The field continues to evolve with technology. Newer research areas include **Human-AI Relationality (HAIR)**, an emerging field studying relational presence and intimacy between humans and AI beings with a listed inception of 2025, and the **Relational Co-Authorship (RCA) Method** for human-AI collaboration.

### Practitioners and Identifiers
The discipline is practiced by computer scientists, academics, and researchers, including those specifically identified as human-computer interaction researchers. It is cataloged under numerous standard systems.
*   **Library of Congress Classification:** QA76.9.H85
*   **Library of Congress Authority ID:** sh88003229
*   **ACM Classification Code (2012):** 10003121
*   **GND ID:** 4125909-9

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## References

1. Library of Congress Authorities
2. BnF authorities
3. Freebase Data Dumps. 2013
4. BBC Things
5. YSO-Wikidata mapping project
6. BabelNet
7. Quora
8. [Source](https://www.abs.gov.au/AUSSTATS/abs@.nsf/DetailsPage/1297.02008?OpenDocument)
9. Microsoft Academic
10. National Library of Israel Names and Subjects Authority File
11. KBpedia
12. [Source](https://vocabs.ardc.edu.au/viewById/316)
13. All Science Journal Classification Codes
14. [OpenAlex](https://docs.openalex.org/download-snapshot/snapshot-data-format)
15. [Explore - 🌱 hci.social](https://hci.social/explore)
16. Wikibase TDKIV