In my previous blog post, I introduced the concepts of Ubiquitous Computing and Tangible User Interfaces through the example of a smart water glass. When we return to this example and look on the character of the interaction and the information flow, shifting our attention from the what it does to how it communicates, the principles of Calm Technology become visible.
What is Calm Technology?
Calm Technology is a design principle, that aims to keep devices at the periphery of our attention by offering information only when it is contextually relevant, and in a subtle, unobtrusive way. Instead of demanding focus, such technologies blend into the background of daily life and surface only when intervention is needed. In doing so, they seeks to reduce cognitive load, minimize stress, allowing people to remain focused and productive while staying connected with technology without feeling overwhelmed by it. (Weiser, Brown, 1995 & 1996)
What is Periphery?
I just mentioned calm technologies aim to keep at the periphery – but what exactly does periphery mean? To understand how the principles of Calm Technology work, we first need to look at how interaction engages our attention. We can distinguish between the center of our attention and the periphery. The periphery describes everything that is not in our direct focus, yet still registered in the background.
For visual perception, for instance, the center of attention might be the text we are currently reading, while the surrounding room remains in the periphery. Our center of vision is optimized for detail, color, and object recognition. Peripheral vision, in contrast, detects motion, overall shapes, and spatial layout. It helps us sense changes in our environment and guides our attention when something becomes relevant.
Calm Technology makes intentional use of this dynamic. It works by allowing information to move fluidly between the center of attention and the periphery. The periphery is powerful and informative: it enables us to notice important changes while leaving us free to decide whether something should shift into the center of our attention—or remain quietly in the background.
The Principles of Calm Technology
Now let’s take a look at the eight principles of Calm Technology, which were developed as a framework for designing technology that works with human attention and use them to analyze our smart water glass.
- 1. Technology should require the smallest possible amount of attention
Our water glass in general embodies this idea: it doesn’t beep, flash aggressively, or require deliberate interaction. Instead, it tracks the amount and frequency of drinking by itself and might glow softly when hydration is low. The glass communicates through presence rather than interruption.
- 2. Technology should inform and create calm
Information is only given when required, therefore it gives people just the amount of information they need to solve their problem
- 3. Technology should make use of the periphery
Because the output of our smart water glass is designed to be gentle and ambient, it can be perceived through peripheral attention rather than demanding direct focus. Its cues remain unobtrusive in the background, becoming noticeable only when needed.
- 4. Technology should amplify the best of technology and the best of humanity
The smart water glass does not force the user to drink through disruptive notifications. Instead, it gently indicates how much time has passed since the last sip, helping the user remember to stay hydrated without imposing strict rules. This approach preserves the user’s autonomy: they remain in control, while the technology quietly supports their goals.
- 5. Technology can communicate, but doesn’t need to speak
By informing the user peripherally through subtle ambient lighting, the smart water glass communicates its message without the need for sound or explicit verbal cues.
- 6. Technology should work even when it fails
Even if the smart water glass fails to detect a drinking event, the user can still drink normally. The technology enhances the experience but does not prevent the core activity from occurring.
- 7. The right amount of technology is the minimum needed to solve the problem
The smart water glass focuses solely on reminding the user to drink, without adding unrelated information or features. By limiting its functions to the immediate goal, it avoids overwhelming or confusing the user.
- 8. Technology should respect social norms.
By keeping its output subtle and non-disruptive, even in the presence of other people, the smart water glass respects social norms and avoids drawing unwanted attention.
In summary, the smart water glass demonstrates how Calm Technology principles can guide the design of devices that are informative, unobtrusive, and supportive—enhancing human behavior while remaining in the background of daily life.
In the next blog entry, I will take a closer look at the characteristics that make technology truly calm and explore how and why we perceive certain technologies this way. I will also discuss the relationship between Ubiquitous Computing and Calm Technology, and what these ideas mean for the field of User Experience Design.
References:
- Weiser, M., Seely Brown, J. (1995): “Designing Calm Technology“, Xerox PARC
- Weiser, M., Seely Brown, J. (1996): “The Coming Age of Calm Technology“, Xerox PARC
- Case, A. (2015): “Calm Technology: Principles and Patterns for Non-Intrusive Design“
- https://calmtech.com
AI Assistance Disclaimer:
AI tools were used to improve grammar and phrasing. The ideas, examples, and content remain entirely the author’s own.
