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Human Factor Engineering (HFE)

Demonstrating your device can be used safely and effectively by real users — to IEC 62366-1 and FDA human factors guidance.

Inside Our Human Factors Practice

A multidisciplinary team — engineering, design, and behavioral science — running formative and summative studies in controlled, simulated-use environments.

Use-Related Risk & Formative Studies

Design out use error before it reaches validation.

We start from a use specification and a use-related risk analysis (URRA), identify the critical tasks where use error could cause harm, and run iterative formative studies throughout development. Each round feeds directly back into the user interface, instructions for use, labeling, and training — reducing risk while changes are still inexpensive. Our approach follows IEC 62366-1 and the FDA's human factors guidance.

  • Use specification & URRA
  • Critical task & use-error analysis
  • Iterative formative studies
  • User interface (IFU, package, and labeling) optimization

Validation Studies

The human factors evidence your submission depends on.

We design and execute summative human factors validation studies with representative users in realistic use environments, covering every critical task. We manage participant recruitment and screening, moderate and record the sessions, analyze use errors and their root causes, and author the HFE/UE report that supports your FDA or EU submission.

  • Summative protocol design
  • Representative user recruitment & screening
  • Moderated validation sessions
  • Use-error root-cause analysis
  • HFE/UE report for submission

How a Human Factors Program Runs

  1. 01
    Use Specification & URRA

    Define intended users, use environments, and the tasks where use error could cause harm.

  2. 02
    Formative Evaluation

    Iterative studies through design that surface and eliminate use errors early.

  3. 03
    Validation

    Validation studies and analyses with representative users in a realistic environment, covering all critical tasks.

  4. 04
    HFE/UE Report

    The engineering report and residual-risk conclusions that support your submission.

Methods We Apply

A full toolkit spanning analytical, formative, and validation work, aligned to IEC 62366-1:2015 and FDA human factors guidance.

  • Use-related risk analysis (URRA)
  • Perception–Cognition–Action (PCA) analysis
  • Task & use-error analysis
  • Expert / heuristic reviews
  • Contextual inquiry & user interviews
  • Formative usability studies
  • Summative (validation) studies
  • Comparative use studies
  • Eye tracking & human-capability measures
  • IFU, labeling & packaging evaluation

Need human factors validation?

Contact us to plan formative and summative studies that de-risk your submission.

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