Human-Computer Interaction (HCI)
What is Human-Computer Interaction (HCI)?
Human-computer interaction (HCI) is a multidisciplinary field of study focusing on the design of computer technology and, in particular, the interaction between humans (the users) and computers. While initially concerned with computers, HCI has since expanded to cover almost all forms of information technology design.
Here, Professor Alan Dix explains the roots of HCI and which areas are particularly important to it.
The Meteoric Rise of HCI
HCI surfaced in the 1980s with the advent of personal computing, just as machines such as the Apple Macintosh, IBM PC 5150 and Commodore 64 started turning up in homes and offices in society-changing numbers. For the first time, sophisticated electronic systems were available to general consumers for uses such as word processors, games units and accounting aids. Consequently, as computers were no longer room-sized, expensive tools exclusively built for experts in specialized environments, the need to create human-computer interaction that was also easy and efficient for less experienced users became increasingly vital. From its origins, HCI would expand to incorporate multiple disciplines, such as computer science, cognitive science and human-factors engineering.
HCI soon became the subject of intense academic investigation. Those who studied and worked in HCI saw it as a crucial instrument to popularize the idea that the interaction between a computer and the user should resemble a human-to-human, open-ended dialogue. Initially, HCI researchers focused on improving the usability of desktop computers (i.e., practitioners concentrated on how easy computers are to learn and use). However, with the rise of technologies such as the Internet and the smartphone, computer use would increasingly move away from the desktop to embrace the mobile world. Also, HCI has steadily encompassed more fields:
“…it no longer makes sense to regard HCI as a specialty of computer science; HCI has grown to be broader, larger and much more diverse than computer science itself. HCI expanded from its initial focus on individual and generic user behavior to include social and organizational computing, accessibility for the elderly, the cognitively and physically impaired, and for all people, and for the widest possible spectrum of human experiences and activities. It expanded from desktop office applications to include games, learning and education, commerce, health and medical applications, emergency planning and response, and systems to support collaboration and community. It expanded from early graphical user interfaces to include myriad interaction techniques and devices, multi-modal interactions, tool support for model-based user interface specification, and a host of emerging ubiquitous, handheld and context-aware interactions.”
— John M. Carroll, author and a founder of the field of human-computer interaction.
The UX Value of HCI and Its Related Realms
Despite that, some differences remain between HCI and UX design. Practitioners of HCI tend to be more academically focused. They're involved in scientific research and developing empirical understandings of users. Conversely, UX designers are almost invariably industry-focused and involved in building products or services—e.g., smartphone apps and websites. Regardless of this divide, the practical considerations for products that we as UX professionals concern ourselves with have direct links to the findings of HCI specialists about users’ mindsets. With the broader span of topics that HCI covers, UX designers have a wealth of resources to draw from, although much research remains suited to academic audiences. Those of us who are designers also lack the luxury of time which HCI specialists typically enjoy. So, we must stretch beyond our industry-dictated constraints to access these more academic findings. When you do that well, you can leverage key insights into achieving the best designs for your users. By “collaborating” in this way with the HCI world, designers can drive impactful changes in the market and society.
Learn More about Human-Computer Interaction
The Interaction Design Foundation’s encyclopedia chapter on Human-Computer Interaction, by John M. Carroll, a founder of HCI, is an ideal source for gaining a solid understanding of HCI as a field of study: https://www.interaction-design.org/literature/book/the-encyclopedia-of-human-computer-interaction-2nd-ed/human-computer-interaction-brief-intro
Keep up to date with the latest developments in HCI at the international society for HCI, SIGCHI: https://sigchi.org/
Learn the tools of HCI with our course on HCI, taught by Professor Alan Dix, author of one of the most well-known textbooks on HCI. You can find it here: https://www.interaction-design.org/courses/human-computer-interaction
Literature on Human-Computer Interaction (HCI)
Here’s the entire UX literature on Human-Computer Interaction (HCI) by the Interaction Design Foundation, collated in one place:
Learn more about Human-Computer Interaction (HCI)
Take a deep dive into Human-Computer Interaction (HCI) with our course Human-Computer Interaction - HCI .
Interactions between computers and humans should be as intuitive as conversations between two humans—and yet many products and services fail to achieve this. So, what do you need to know so as to create an intuitive user experience? Human psychology? Emotional design? Specialized design processes? The answer is, of course, all of the above, and this course will cover them all.
Human-computer interaction (HCI) is about understanding what it means to be a user of a computer (which is more complicated than it sounds), and therefore how to create related products and services that work seamlessly. It’s an important skill to master, because it gives any company the perspective and knowledge needed to build products that work more efficiently and therefore sell better. In fact, the Bureau of Labor Statistics predicts the Computer and IT occupation to grow by 12% from 2014–2024, faster than the average for all occupations. This goes to show the immense demand in the market for professionals equipped with the right computer and IT skills.
This course provides a comprehensive introduction and deep dive into HCI, so you can create designs that provide outstanding user experiences. Whether you are a newcomer to the subject of HCI or a professional, by the end of the course you will have a deep understanding of what it means to be a user and how to implement user-centered design for the best possible results.
This course is based on in-depth videos created by the amazing Alan Dix. You'll be in great company with this renowned professor and Director of the Computational Foundry at Swansea University, a specialist in HCI and co-author of the classic textbook, Human-Computer Interaction.
Socio-Technical System Design
User Interface Design Adaptation
Design for All
Philosophy of Interaction
Semi-structured qualitative studies
Computer Supported Cooperative Work
Experimental Methods in Human-Computer Interaction
Emotion and website design
A Brief History of Human-Computer Interaction
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