engawa / kata 型

Frameworks for thinking
about context.

These are not tools for efficiency. They are structures for discernment. Ways of seeing what is lost when context is removed, and what is gained when it is preserved.

© Taishi Okano / engawa. May be referenced with attribution.

Interface

The Four Types of Friction

Only obstacle friction is a failure. The other three — threshold, sequencing, sensory — are tools for intentionality.

This framework applies to UX design, onboarding, and any product decision about where to add or remove resistance. If you're working on something in that space, I'm occasionally available for conversations.

From: In Praise of Friction →
Type Removes Produces Digital example
Obstacle Speed, flow Nothing — pure cost Broken links, dark patterns
Threshold Casual engagement Intentionality GitHub confirm-delete
Sequencing Simultaneity Focused attention Typeform one-at-a-time
Sensory Comfort Presence Haptic on high-stakes actions

© Taishi Okano / engawa

Interface

Haptic Friction

Friction is not only resistance. It is signal. The medium — touch, sound, visual, time — determines what friction means to the body before the mind catches up.

Applies to product design, interaction design, and any experience where the body's response matters before the brain catches up.

From: In Praise of Friction →
Medium Input type Friction signal Human response
Touch Tap, swipe, press Resistance, pulse, texture Confirmation, caution, delight
Sound Click, tone, silence Rhythm break, decay, void Attention, pause, unease
Visual Motion, color, form Lag, contrast, distortion Hesitation, focus, surprise
Time Wait, sequence, pacing Delay, rhythm, threshold Anticipation, intention, weight

© Taishi Okano / engawa

Philosophy

The Ma Matrix

Not every task benefits from the gap. The matrix tells you when to skip it — and when the gap is the whole point.

This framework applies to AI product design and any interface decision about when to slow down rather than optimize. I'm occasionally available for conversations.

From: The Stillness Between Notes →
Task type What it needs What Ma provides
Information retrieval
Speed
Nothing. Skip the gap.
Decision-making
Deliberation
Conditions for judgment to form
Creative synthesis
Incubation
Space where connections form below the surface
Learning + integration
Reflection
The process by which information becomes understanding
Meaning-making
Presence
The experience itself

© Taishi Okano / engawa

Craft

The Three Layers of Context

Philosophy, craft, and interface are not a hierarchy — they are in constant conversation. The framework maps where context lives in each layer, and what is stripped when optimization moves between them.

Publishing after article #15.

coming soon

These frameworks emerge from thinking about technology, craft, and cultural context. About what gets lost when they move too fast past each other. If you're working on something at that intersection, I'm occasionally available for conversations.

Get in touch →