hfe-human-factors

Determines FDA human factors submission categories and generates URRA analysis and validation test plans.

1|Updated Jul 13, 2026
One-click install
npx skills add https://github.com/HalseyYang/Skills-HY --skill hfe-human-factors-halseyyang
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: hfe-human-factors
Source: https://github.com/HalseyYang/Skills-HY/tree/main/hfe-human-factors
Command: npx skills add https://github.com/HalseyYang/Skills-HY --skill hfe-human-factors-halseyyang

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve? Medical device manufacturers struggle to determine which FDA Human Factors Engineering (HFE) submission category applies to their device and what documentation is required, risking technical screening holds or unnecessary summative validation testing costs. ## Core Features & Use Cases - Submission Category Classification: Applies the four-step Decision Points A-D framework from the FDA 2026 final guidance to classify submissions as Category 1, 2, or 3. - URRA Analysis Framework: Generates use-related risk analysis templates with critical task identification aligned to ISO 14971 risk matrices. - Validation Test Plan Generation: Produces summative human factors testing protocols covering user counts, environments, task scripts, and statistical acceptance criteria. - Use Case: A manufacturer modifying a device label can input the device description to determine whether the change triggers Category 2 documentation or can use Decision Point D to justify avoiding summative validation testing. ## Quick Start Describe your medical device and its user interface changes, then ask the skill to determine the FDA HFE submission category and generate the required documentation checklist.

Frequently Asked Questions about hfe-human-factors

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I determine the FDA human factors submission category for my medical device?

Apply the four-step Decision Points A-D framework: check if the device is a modification, whether UI/users/labeling changed, whether new critical tasks are introduced, and whether validation testing is necessary. The result classifies your submission as Category 1, 2, or 3.

What is a URRA in medical device usability engineering?

A URRA (Use-Related Risk Analysis) identifies use scenarios, use-related hazards, and critical tasks where user errors could cause serious harm. It links ISO 14971 risk management to IEC 62366-1 usability engineering and determines your HFE submission scope.

Can I avoid summative human factors validation testing under the 2026 FDA guidance?

Yes, Decision Point D in the 2026 final guidance allows Category 2 submission without validation testing if you justify it based on safe use history, low UI complexity, and adequate existing risk controls, supported by formative evaluation data.

How many participants are required for FDA human factors validation testing?

FDA recommends a minimum of 15 representative users per distinct user population for summative validation testing. Participants must not have been involved in product development or prior formative evaluations.

Does FDA human factors guidance differ from EU MDR usability requirements?

Yes. FDA uses a tiered Category 1/2/3 submission framework with a 15-user benchmark, while EU MDR embeds usability in Annex I GSPR via EN IEC 62366-1 with no minimum participant count but permanent technical documentation reviewed by Notified Bodies.