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Interaction Design Foundation

6 resources from Interaction Design Foundation we point founders to, and the questions each answers.

📄 Article
✓ Link checked Free Beginner

Why we picked it A clear, example rich walkthrough of Hick's Law with the history and the practical moves side by side. It shows how to figure out which functions to offer at each step so users are guided, not flooded. Good if you want a fuller narrative than a summary card.

Hick's Law: Making the Choice Easier for Users

From Interaction Design Foundation by Mads Soegaard 8 min read

  • Traces the law from its 1950s origin to today's screens
  • Shows how to prioritize functions step by step
  • Explains what over choice does to a hesitant user
Open interaction-design.org
📄 Article
✓ Link checked Free Beginner

Why we picked it A hands on explainer of how size and distance shape whether a control feels easy or fiddly. It uses concrete UI examples, including why pie and radial menus can beat long lists. Read it when you are placing and sizing the buttons that matter most.

Fitts's Law: The Importance of Size and Distance in UI Design

From Interaction Design Foundation by Interaction Design Foundation 8 min read

  • Size and distance together decide how fast a target is hit
  • Concrete UI examples, including menu layout tradeoffs
  • Directly informs where your primary action should sit
Open interaction-design.org
📄 Article
✓ Link checked Freemium Beginner

Why we picked it Generous whitespace is half of the short answer, and this explains both macro and micro space clearly. You learn why breathing room around elements and between lines makes a product feel premium rather than crowded. Good for understanding why "just add more space" actually works.

The Power of White Space in Design

From Interaction Design Foundation

  • Macro space sets hierarchy between big sections
  • Micro space between lines drives readability
  • More space around an element draws more attention
Open ixdf.org
📄 Article
✓ Link checked Freemium Beginner

Why we picked it Polish is mostly restraint, and this lays out practical ways to strip a design down. It helps you resist the urge to add more styles, colors, and elements, which is exactly what makes early products feel busy and amateur. A useful counterweight when you are tempted to decorate.

Simplicity in Design: 4 Ways to Achieve Simplicity

From Interaction Design Foundation

  • Remove elements before adding them
  • Fewer styles read as more intentional
  • Simplicity shortens the path to value
Open ixdf.org
📄 Article
✓ Link checked Free Beginner

Why we picked it Kano gives you a vocabulary for why exciting features can mislead you: delighters add satisfaction, but missing basics (reliability, honouring what you promised) actively create anger. It shows that a broken basic hurts more than a shiny delighter helps. That is the model behind treating reliability as non negotiable and exciting as optional.

The Kano Model

From Interaction Design Foundation by Interaction Design Foundation

  • Basic expectations, when broken, cause outsized anger
  • Exciting delighters add satisfaction but never cover a broken basic
  • Reliability is a must have, not a nice to have
Open interaction-design.org
📄 Article
✓ Link checked Free Beginner

Why we picked it This lays out the practical mechanics of a feedback session, including being neutral when you present the prototype and adapting your questions as you go without leading the witness. It's a good primer before your first few tests, especially if you're coming from a design-thinking background rather than a UX research one.

Test Your Prototypes: How to Gather Feedback and Maximize Learning

From Interaction Design Foundation

  • Present your prototype the same neutral way to every participant.
  • Let participants add their own ideas instead of only reacting to yours.
  • Actually change your next prototype based on what you saw, don't just collect notes.
Open ixdf.org
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