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Start for freeInteraction Design in product design is the practice of creating engaging interfaces with well-thought-out behaviors and actions that allow users to interact effectively and intuitively with a product.
Synonyms: IxD, User Interaction Design, Interactive Design, UI Interaction Design

Interaction Design is crucial because it shapes how users experience a product. Good interaction design ensures that users can achieve their goals efficiently and enjoyably, which leads to higher satisfaction and better product success.
Interaction designers focus on defining the way users interact with a product’s interface, including buttons, gestures, and feedback. They create wireframes, prototypes, and interaction flows to test and refine these interactions before final development.
Examples include the way a mobile app responds to taps and swipes, how a website provides feedback when a form is submitted, or how a smart device uses voice commands. These interactions make the product feel responsive and user-friendly.