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Non-Functional Requirements

Your constantly-updated definition of Non-Functional Requirements and collection of videos and articles. Be a conversation starter: Share this page and inspire others!
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Literature on Non-Functional Requirements

Here's the entire UX literature on Non-Functional Requirements by the Interaction Design Foundation, collated in one place:

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All open-source articles on Non-Functional Requirements

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Get to Grips with Constraints
Got constraints? Perfect. That’s where great design begins. Just as electrical standards define how a toaster safely wor
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IxDF - Interaction Design Foundation. (2025, September 29). What are Non-Functional Requirements?. IxDF - Interaction Design Foundation.