UX Research and UX Consulting

Atlanta Based Usability Experts with Worldwide Reach

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"Every dollar that an organization invests in user experience results in a return of $100. That’s an ROI of 9,900%!


The Six Steps For Justifying Better UX

Report by Andrew Hogan & Deanna Laufer

Forrester

Jackson Associates Research Atlanta

We are usability research experts


Our user research agency comprises the top-tier researchers in our field. Being a boutique firm, we offer hands-on, personalized attention for every aspect of your UX research project. With decades of experience, we consistently surpass our clients’ expectations. 


UX Firm’s comprehensive suite of usability services includes usability testing, human factors validation testing, and a range of UX research tools, tailored to your goals and budget, to enhance user experience at every stage of development.


Our usability testing services are our most popular because you can do a small study on a small budget and get actionable results fast.  If you haven't done usability research up to now, a usability test might be a great place to start.

Carol Barnum Usability Expert
UX Firm Fortune 500 clients

UX research consultants for Fortune 500 to startups

Whether you are a Fortune 500 company or a startup, our UX research team delivers the highest quality insights to build better products, meet FDA and EU MDR requirements for medical devices, boost sales, and improve customer satisfaction.


UX Firm excels in both comprehensive research projects and targeted studies. New to UX research, or seeking innovative approaches?  We tailor our services to your budget and goals.


Full-service user research agency


Our UX consulting firm provides complete turnkey services to support your usability research needs and budget.  Our team of user experience consultants starts with planning and take you through all the steps to develop a test protocol, recruit your participants, set up and conduct the usability study, and report the results. 

Our UX research agency services include:

  • Participant recruiting using screeners that match your user profiles
  • Formative and summative user testing
  • Expert moderated testing sessions, both in person and remote
  • Deep probes of users’ needs and contexts from field studies and diary studies
  • Detailed data collection 
  • In-depth analysis of findings
  • Evidence-based recommendation reports
  • Stakeholder closeout meetings
Key showing turnkey UX consulting services
Planning meeting

Your UX usability research partners

As your dedicated UX research partners, we're with you every step of the way. We start by learning what matters most to you, aligning your needs with our expertise. We also learn your product to understand how your users engage with it, ensuring our findings are accurate and insightful. 

Every project starts with a planning meeting where we craft a strategy to achieve your goals, meet requirements, and stay within budget.


Regular team check-ins keep everyone up to date on the project. Draft reports are circulated and edited before final approval by your team. All human factors validation study reports comply with FDA and IEC guidance to support regulatory compliance.


Stakeholder and executive presentations—both informal and formal—present actionable, evidence-based findings that drive results.  

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UX Firm has been a great partner to help us prepare the usability study for our FDA submission.

Borja from Nuubo

Borja Gonzalvez 

R & D Software Director, Nuubo

Spain

nuubo

Our UX Research Consulting Services

UX Strategy and Consulting

At any stage of your product's lifecycle, we craft a UX strategy to seamlessly integrate user experience into product design. We help you define clear research goals, identify the specific data needed to answer your questions, and select the most effective research method - all while staying within your budgetary constraints. A well-defined UX strategy ensures your product is user-centered, efficient, and effective, leading to higher use satisfaction and ROI.

User Research

Our user research firm boasts an extensive UX Toolkit with over a dozen methods, including usability testing, human factors validation testing for medical devices, expert reviews, card sorting, diary studies, site visits, persona development, surveys, and focus groups. This toolkit enables us to tailor our approach to meet your specific research needs and project goals.


Human Factors Validation Testing
(FDA Usability Testing for Medical Devices)

Medical device human factors testing requires adherence to procedures following  FDA and IEC guidance to ensure the safe and effective use of medical devices. UX Firm delivers effective test protocols, high-quality formative and summative usability testing evaluations, and detailed reports for FDA 510(k) and De Novo submissions. This ensures your medical devices meet regulatory standards for safe and effective use.

Usability Testing Services

Usability testing is our most popular UX research method because it provides actionable results fast, based on seeing and learning from your users performing real tasks based on real goals. We conduct one-on-one, in-person testing and moderated remote usability testing. Unsure of which method is right for you? We'll help you to determine the best approach for your product's stage of development and your budget, ensuring you get the most valuable insights.

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Comprehensive UX Solutions Tailored to Your Business

With decades of expertise, our team delivers tailored UX solutions that drive results. We offer expert UX consulting, human factors validation testing for regulatory compliance, and usability testing for ecommerce and B2B platforms. Whether your goal is enhanced user satisfaction, FDA and IEC compliance, or increased conversions, our evidence-based approach ensures your business succeeds. We turn insights into actions.

 UX research

When it comes to user experience, we are UX experts. Everyone on our team has decades of experience. That means we know how to plan and deliver data-driven results. Find out how UX consulting can benefit your organization.

Human factors validation testing

When it comes to human factors validation testing, we are your trusted human factors consulting experts. We provide human factors FDA guidance in conducting research on a wide variety of medical devices and combination products, Our deep knowledge of the requirements for FDA 510(k) and De Novo submissions, as well as IEC 62366, MDR, and MHRA requirements, ensures your products meet all necessary standards.

Ecommerce and B2B usability testing 

Looking to improve your ecommerce or B2B usability? You've found the usability experts you need. With decades of experience, our UX research firm specializes in enhancing the UX of websites, mobile apps, and web applications. What sets us apart? Our proven track record and deep understanding of user behavior ensures your digital platforms are optimized for success.

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It was an absolute pleasure to work with Carol on our research survey project. Her insights helped us develop and finalize a successful research survey.

NaRCAD review

Anna Morgan-Barsamian

Senior Manager, Training & Education, NaRCAD

NarCAD

Check out our recent UX blogs

heat map
By Carol Barnum September 18, 2025
Discover how usability testing uses data-driven methods to improve product design, meet user needs, and enhance satisfaction. Learn why it’s essential for your product’s success.
global standards
By Carol Barnum September 12, 2025
Learn how to achieve global compliance in medical device development by meeting IEC 62366-1 and FDA human factors standards. Explore best practices for usability testing and regulatory success.
Nurse in blue scrubs attending to a woman in a hospital bed; medical equipment in the room.
By Carol Barnum July 11, 2025
Navigating the regulatory landscape of medical devices can be a challenging endeavor. For companies aiming to bring innovative solutions to market, meeting FDA regulatory requirements is a critical milestone. But as anyone in the industry knows, even a minor misstep can lead to delays, increased costs, or even product rejection.  One of the most effective ways to avoid these setbacks? Incorporate usability testing into your development process. Usability testing not only ensures that your device meets user needs but also helps identify and mitigate risks that could raise red flags during FDA reviews. Here’s why usability testing is essential and how it can safeguard your path to approval.
ecommerce
By Carol Barnum June 6, 2025
Discover the top 5 UX research methods to enhance your ecommerce site. Learn how user interviews, usability testing, heatmaps, and more can increase sales and improve customer experience.
Read More UX Blogs
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Nii Codjoe

Group 4

"Whether you're an individual hoping to hone your research skills or you're an organization looking to augment your research practice, I recommend you work with Carol. You're in for a treat!"

steve krug

Steve Krug

Group 4

"When I think of the best in the business, I think of Carol Barnum. If you need any of the UX services she offers, I'd always recommend checking with her first."

craig lawson

Craig Lawson

Group 4

"Carol is a great person to work with. Very knowledgeable!"

Frequently Asked Questions About Usability Testing

  • What methods are used in usability testing?

    Usability testing methods include one-on-one, in-person testing, moderated remote usability testing, and field studies. These methods are tailored to the product's development stage and budget, ensuring actionable insights to improve user experience.

  • What are the requirements for usability testing of medical devices?

    Usability testing for medical devices must adhere to FDA and IEC guidance to ensure safe and effective use. This includes developing test protocols, conducting formative and summative usability evaluations, and preparing detailed reports for FDA 510(k) and De Novo submissions. Compliance with standards like IEC 62366 is also essential.

  • What is human factors validation, and why is it important?

    Human factors validation ensures that medical devices are safe and effective for users. It involves understanding user needs, testing usability, and minimizing errors. This process is critical for meeting FDA and IEC compliance standards and ensuring successful product approval.