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Concept

Interaction Design

What is interaction design?

Interaction design is the discipline focused on designing meaningful interactions between people and digital products or systems. It defines how digital elements behave, respond, and guide user actions across digital screens and physical touchpoints.

In short

Interaction design shapes how users engage with technology through controls, feedback loops, and intuitive states. It examines touch gestures, animations, button responses, and latency to craft seamless behavioral flows. The practice combines cognitive psychology, user experience principles, and interface engineering.

Key facts

What are the core dimensions of interaction design?
Dimensions include words, visual representations, physical objects or space, time, and interactive behavior.
How does interaction design provide clarity to users?
It provides immediate feedback, clear affordances, and predictable transition states that confirm system actions.
How is interaction design framed in the Agency editorial?
The editorial groups it alongside information architecture as the structural engine that establishes navigation systems and behavioral models.

Overview

Interaction design determines how digital systems react to human inputs such as clicks, swipes, taps, and voice prompts. Designers establish operational behaviors, state transitions, and responsive feedback indicators that reassure the user. By anticipating human intentions and potential errors, this discipline ensures smooth communication between human and software. It bridges raw technology with human cognitive expectations to foster effortless digital workflows.

In the Agency editorial

In Design 3, interaction design is named alongside information architecture among the responsibilities of UX/UI designers. The text describes the design of intuitive navigation systems, information flows and interaction models that enable users to efficiently navigate and accomplish their tasks. The author adds that wireframes and prototypes are created to test initial iterations.

Source editions

Where this entry comes from in the Agency editorial.

Related terms

wireframenoun
A skeletal visual guide that outlines the basic structure, hierarchy, and functionality of a user interface.

Sources

  1. Design.3 - The Disciplines of Design (opens in a new tab), Agency Brasil
Published
Cite this entry

“Interaction Design”. Agency Wiki, Agency Brasil. Published on November 11, 2026. https://www.agencybrasil.com/en/wiki/interaction-design