--- title: "HFE, Human Factors Engineering | MedTech Terms" description: "Engineering discipline focused on safe and effective device use by intended users. 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[Home](/) 2. / 3. [Terms](/terms) 4. / 5. [Clinical & Trials](/terms?cat=Clinical%20%26%20Trials) 6. / 7. Human Factors Engineering [All terms](/terms) Clinical & Trials [Clinical Evidence](/ecosystems/clinical-evidence)[Startup Lifecycle](/ecosystems/startup-lifecycle)HFE # Human Factors Engineering Engineering discipline focused on safe and effective device use by intended users. Reviewed by [Christian Espinosa, Founder, Blue Goat Cyber](/authors/christian-espinosa) Last reviewed May 5, 2026 ## Definition Human Factors Engineering (also called Usability Engineering) applies knowledge of human behavior, abilities, and limitations to the design of medical devices to ensure [safe](/terms/safe-note) and effective use by intended users in [intended use](/terms/intended-use) environments. ## What this means in practice FDA expects a Human Factors Validation Study for devices with use-related risks. Findings can drive [labeling](/terms/labeling), training, and design changes. ## Use cases 1 scenario 1 ### Auto-injector for at-home use Human factors engineer The team performs formative studies with caregivers and patients, identifies confusion around the safety cap, redesigns it, then runs a validation study with 15 users per use group per [IEC 62366-1](/terms/iec-62366-1) and FDA HF guidance. Outcome Use-error rates drop to acceptable thresholds; the HF validation report supports the 510(k) and [PMS](/terms/post-market-surveillance) plan. ## Cross-references ### See also Closely related context worth reading. - [ IEC 62366-1 ](/terms/iec-62366-1) ## Related terms Grouped by theme ### Editor's picks · Hand-selected related concepts [ Standards IEC 62366-1 Application of usability engineering to medical devices. ](/terms/iec-62366-1)[ Clinical & Trials Use Error User action or lack thereof that leads to a different result than intended by the manufacturer or expected by the user. ](/terms/use-error)[ Standards ISO 14971 International standard for the application of risk management to medical devices. ](/terms/iso-14971) ### Risk & Usability Deep Dive · From this learning path [ Quality & Risk Use Specification Defined description of intended users, uses, use environments, and patient populations for a device. Adjacent lesson ](/terms/use-specification?from=risk-and-usability)[ Regulatory Labeling All written, printed, or graphic matter on or accompanying a device. ](/terms/labeling?from=risk-and-usability)[ Quality & Risk Risk Acceptability Matrix Pre-defined matrix mapping severity × probability combinations to acceptable, ALARP, or unacceptable risk. ](/terms/risk-acceptability-matrix?from=risk-and-usability)[ Quality & Risk Risk Management File(RMF) Set of records and outputs from the ISO 14971 risk management process. ](/terms/risk-management-file?from=risk-and-usability) ### More in Clinical & Trials · Same category [ Clinical & Trials Adaptive Trial Design Trial design that pre-specifies opportunities to modify aspects (sample size, arms, endpoints) based on interim data. ](/terms/adaptive-trial) Cited by Where this term appears across MedTech Terms. Learning paths (1) - [Risk & Usability Deep Dive](/paths/risk-and-usability)Lesson 5 of 9 Ecosystems (2) - [Clinical Evidence](/ecosystems/clinical-evidence) - [Startup Lifecycle](/ecosystems/startup-lifecycle) ## Primary references 3 sources Link health: 3 verified · last checked 2026-06-20 FDA· 1 NIH· 1 ICH· 1 1. [1 FDA Human Factors Guidance Verified FDA · fda.gov ](https://www.fda.gov/regulatory-information/search-fda-guidance-documents/applying-human-factors-and-usability-engineering-medical-devices) 2. [2 ClinicalTrials.gov Verified NIH · clinicaltrials.gov ](https://clinicaltrials.gov/) 3. [3 ICH Guidelines Verified ICH · ich.org ](https://www.ich.org/page/ich-guidelines) Inline markers like \[1\] jump to the matching reference above. Sponsor note ### Clinical evidence intersecting with device security? We support clinical-stage MedTech teams whose investigational devices touch patient data or hospital networks. [Book a 30-minute discovery session](https://go.bluegoatcyber.com/meetings/blue-goat-cyber/discovery-session) - No obligation - Expert-led from minute one - NDA available on request MedTech Terms is a community resource sponsored by [Blue Goat Cyber](https://bluegoatcyber.com). Definitions are independent of any vendor. On this term Category Clinical & Trials Acronym HFE Sources 3 Use cases 1 Updated 5/5/2026 [Compare with another term](/compare?a=human-factors) Learn in 60 seconds Card Lesson Quiz Engineering discipline focused on safe and effective device use by intended users. - · FDA expects a Human Factors Validation Study for devices with use-related risks. - · Findings can drive labeling, training, and design changes. Remember this Engineering discipline focused on safe and effective device use by intended users. Related terms - [IEC 62366-1 ](/terms/iec-62366-1) - [ISO 14971 ](/terms/iso-14971) - [Use Error ](/terms/use-error) You may also need Auto-suggested from Clinical & Trials and shared keywords. - [Explainability and Interpretability ](/terms/explainability) - [Early Feasibility Study(EFS) ](/terms/efs) - [Feasibility Study ](/terms/feasibility-study) - [Informed Consent ](/terms/informed-consent) - [Institutional Review Board(IRB) ](/terms/irb) - [Investigator Brochure(IB) ](/terms/investigator-brochure) [All Clinical & Trials terms](/terms?cat=Clinical%20%26%20Trials) From the Blue Goat network Related resources and services on this topic. - [ MedTech Launchpad MedTech funding rounds, accelerators, and launch resources. ](https://medtechlaunchguide.com) MedTech Terms An authoritative, plain-language reference for the regulatory, quality, cybersecurity, and software terms that shape modern medical devices. 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