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design Intermediate 21 lessons

Interaction Design (IxD)

Design behavior, not just pixels. Master user flows, state changes, affordances, and cognitive load to create intuitive digital products.

Interaction Design (IxD) focuses on how a user interacts with a product over time. This course teaches you to design the 'conversation' between user and system. You will learn to map complex User Flows, define system States (Empty, Loading, Error, Ideal), and ensure Affordances make elements look clickable. We explore Fitts's Law and Hick's Law to optimize usability. This is the logic layer that makes beautiful UI actually usable.

100% Free & Lifetime Access
⏱️ 5-Minute Lessons (Bite-sized learning)
🚀 21-Lesson Path (Independent modules)
📱 Mobile Friendly (Learn anywhere)
IxD Pros
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Complete Course Syllabus

  • 1
    Flows & Logic
    Mapping the path from entry to goal completion.
  • 2
    The 5 States
    Designing for Ideal, Empty, Error, Loading, and Partial states.
  • 3
    Affordances
    Making sure buttons look like buttons.
  • 4
    Feedback Loops
    Communicating system status to the user instantly.
  • 5
    Cognitive Laws
    Applying scientific rules to reduce friction.

Estimated completion time: 21 lessons • Self-paced learning • Lifetime access

Career Outlook

Estimated Salary
$95k - $135k

Career Paths

Interaction Designer $100k-$145k
UX Designer $95k-$135k
Product Designer $100k-$150k

What You Will Learn

Map detailed User Flows and Task Analyses
Design for all UI States: Error, Empty, Loading, Partial
Apply cognitive psychology laws (Fitts, Hick) to design
Define clear Affordances and Feedback loops
Prototype complex interactions beyond simple clicks

Skills You Will Gain

User Flows State Management Cognitive Psychology Information Architecture Wireframing

Who Is This For

UX Designers
Product Managers
Logic-minded Creatives

Prerequisites

UI Basics

Interaction Design (IxD) FAQs

UX vs IxD?

IxD is a subset of UX focused on behavior/tactics.

Coding?

No, but logical thinking is required.

Tools?

Mostly flowcharting and prototyping tools.

Mobile?

Yes, touch interactions are a huge part of IxD.

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