Mauro Usability Science

In Human Factors Research & Usability Testing Consulting for Leading Corporations, Startups, NGO and Government Agencies Since 1975

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FOUNDED IN 1975

We offer a proven history of solving complex human factors engineering and usability problems for the world’s leading corporations, startups and government agencies.

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We solve usability and human factors challenges through rigorous, science-based methods grounded in decades of experience.

Our success comes from blending deep knowledge of the Human Operating System (hOS) with the complexities of advanced technology (tOS). Our methodology ensures both business and user needs are addressed with precision.

We are fluent in all critical usability research methods and pioneered the use of several of these methods in the U.S. in the early 1970s. In all formative and summative projects, we employ the appropriate methods required to answer your complex business questions.

Our neuroscience-based advanced data capture methodologies deliver robust quantitative data to answer client’s most complex medical device research questions, employing methodologies such as 3D Spatial Tracking, Newtonian Force Measurement, Electromyography (EMG), Eye-Tracking, Micro-Facial Expression Analysis (Emotional Response), and others.

We have extensive expertise with critical user populations, ranging from COPPA age children to individuals of advanced age with severe medical conditions, as well as complex healthcare provider (HCP) and patient populations.

We specialize in highly focused and experienced usability testing and human factors engineering optimization expertise for business-critical, time-sensitive FDA responses.

Our heuristics analyses provide immediate feedback on critical usability and user experience issues present in your medical product or system. We've conducted extensive heuristics on complex medical products, drug delivery devices, imaging systems, patient EMRs and related processes using specialized heuristics rule sets directed at FDA HE 75 guidelines.

We have extensive experience in the design and testing of medical product instructions for use (IFU) and reference guide (RG) systems. We work with clients to ensure that FDA guidance and mandated human factors engineering performance criteria are met for IFU and RG components of medical and drug delivery devices.

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Our firm has executed over 3,000 human factors and usability testing projects ranging over a period of 50 years. This background offers our clients the benefit of knowledge transfer across verticals and within their specific sector.

Medical Products
and Systems

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In the medical products space we offer clients an exceptionally deep and broad level of experience focusing on FDA HF guidance and usability testing. We have developed, validated and utilized in business-critical medical device programs the most advanced testing methods in industry. We are experts in the application of FDA, ISO and other human factors optimization issues.

Consumer / Commercial / Industrial Products & Systems

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We have developed deep industry experience solving all manner of business-critical HF and UT problems. No other consulting firm in our category has more experience. Click here to visit our extensive content on consumer, commercial, industrial and military systems human factors and usability testing.

Institute for Design Science and Public Policy

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We established the Institute for Design Science and Public Policy (IDSPP) to provide a professional framework for expanding the field of design science and public policy with the specific mission of advancing applied design research and design IP protections through professional and governmental involvement.

Citations & awards

We’ve received more professional citations and awards than any other HF / UT consulting firm including reception of the 2024 Titan of Industry For Human Factors Research Award and citations from NASA, Association for Computing Machinery, Human Factors and Ergonomics Society, Industrial Designers Society of America and even an Emmy award for virtual world research.

Recipient of the 2024 Titan of Industry For Human Factors Research Award

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Our case study archive reflects the breadth and depth of our experience.

Case study: New York Stock Exchange

New York Stock Exchange

In a multi-year engagement, MUS executed business-critical human factors engineering research and complex user interface design programs resulting in the creation of a new generation of screen-based (fixed and hand-held) trading systems that dramatically improved trading performance, reduced training time and reduced errors. Solutions verified by independent usability testing. Core concepts implemented by other major exchanges and trading platforms worldwide. MUS received Interactions Design award from Association of Computing Machines for this effort.
Case study: United States Department of Defense

United States Department of Defense

Conducted extensive usability testing, UX optimization research, and UX design for series of critical DOD web interfaces for military personnel and DOD operational staff.
Case study: Augmented Reality (AR) Glasses Comfort/Fit and Feature Set Validation and Definition Research Studies

Augmented Reality (AR) Glasses Comfort/Fit and Feature Set Validation and Definition Research Studies

Two rounds of comfort and fit studies were executed to examine perceived comfort, fit, and stability during prolonged wear for concepts of AR glasses. In a separate study sequence, MUS captured robust and reliable data on possible use cases and features under consideration that will have the highest desirability, value, emotional resonance, and promote subjective well-being for the projected user group. Eye-tracking, micro-facial expression analysis, and galvanic skin response data capture were utilized in addition to survey response data capture throughout the overall research program. Survey questions for the feature set validation study sequence were based on subjective well-being research literature.
Case study: Applied Cognitive Task Analysis (ACTA) for Complex Thoracolumbar Decompression and Fusion Spine Procedure Enabling Technology

Applied Cognitive Task Analysis (ACTA) for Complex Thoracolumbar Decompression and Fusion Spine Procedure Enabling Technology

Executed an applied cognitive task analysis (ACTA) to assess how the benefits of an enabling technology for thoracolumbar decompression and fusion spine procedure outweigh the risks from the perspective of 8 non-biased surgeons. The ACTA also aimed to improve understanding of cognitive skills, expertise, strategies, judgments, and decision-making required for each of the tasks/subtasks involved in the computer-aided surgery, as well as determine whether the enabling technology effectively reduces cognitive and physical workload for surgeons. Opportunities for optimization of the enabling technology were also captured and reported.
Case study: Neuroscience-Based Human Factors and Ergonomics Testing Platform for Video Game Systems and Workstations

Neuroscience-Based Human Factors and Ergonomics Testing Platform for Video Game Systems and Workstations

MUS developed and validated the first fully integrated neuroscience-based human factors and ergonomics testing platform for video game systems. The testing platform captures 29 channels of real-time psychophysical, cognitive, and ergonomic data integrated into a unified data stream. The system utilizes proprietary combinations of 3D spatial tracking, micro-facial expression analysis, galvanic skin response, high-performance eye-tracking, 3D model generation, and several dimensions of actual live video gameplay key performance indicators.
Case study: PFS Force Specification Study with Off-Axial Force Measurement

PFS Force Specification Study with Off-Axial Force Measurement

Executed a study to understand the impact of drug viscosity and volume, as well as PFS device physical parameters (e.g., finger flange extender, plunger design, barrel design) and injection location on acceptable injectability. Also, examined the distribution of force during plunger press down in x, y, and z axes to understand the extent of off-axial force exhibited by representative users. A tri-axial force measurement platform was custom-developed for this off-axial force assessment.
Case study: Opioid Overdose Drug Delivery Study

Opioid Overdose Drug Delivery Study

Executed two studies to inform the device design and related IFU for an opioid overdose drug. High-performance eye-tracking was employed to gain robust insights into how addiction clinic personnel and first responders interact with the device and IFU and apply information gathered from the IFU to perform all tasks necessary for successful drug administration.
Case study: Agile Medical Device Summative Human Factors/Usability Testing Focusing on Rapid IFU Optimization

Agile Medical Device Summative Human Factors/Usability Testing Focusing on Rapid IFU Optimization

Executed a rapid response agile IFU redesign for a complex multi-vial adapter system to effectively and efficiently resolve critical error patterns leading up to formal FDA validation. Eye-tracking was employed to understand user visual attention distribution / information uptake for each IFU iteration tested and inform modifications moving toward the final validated IFU design.
Case study: Intravitreal Injection Pre-filled Syringe Optimization Studies

Intravitreal Injection Pre-filled Syringe Optimization Studies

Conducted a series of studies examining high viscosity intravitreal drug delivery optimization with multiple pre-filled syringe device concepts. A high-fidelity intravitreal (eye-injection) injection simulator was custom-designed for these studies. Retina specialists and ophthalmologists were sampled.
Case study: Major Pharmaceutical Clients

Major Pharmaceutical Clients

Conducted extensive formative and summative studies for submission to FDA including 3D micro-motion and EMG testing for determining device manipulation and needle pain in the use of consumer drug delivery devices.
Case study: High Resolution Eye-Tracking for Medical Device System Optimization

High Resolution Eye-Tracking for Medical Device System Optimization

Conducted several studies utilizing both mobile and screen-based eye-tracking to examine how users attend to the visual aspects of a medical device design solution and/or related IFU, in real time. Combined with other forms of data capture, it imparts robust insights into visual attention differences between design concepts that impact user behavior and acceptance.
Case study: Citibank

Citibank

In a multi-year engagement, executed international UX design, usability research and user engagement optimization programs for Citibank online services. Reported to the highest levels of the bank including Office of the Chairman. Developed primary interaction framework for Citibank home banking utilized on a global basis. Conceptualized and developed large internal teams of subject matter experts, HFE staff and related testing facilities. Citibank online customer experience rated number one on a global basis during period of involvement.
Case study: Harvard Endowment

Harvard Endowment

Executed Complex Information and Decision Analysis for a Very Large Data Set of Highly Divergent Investment Funds. Designed and Tested New UX / HCI Information Display Platform Focused On Providing Rapid Visualization of Fund Status by the Board and Trading Departments.
Case study: Drug Injector Newtonian Force Measurement

Drug Injector Newtonian Force Measurement

Conducted numerous studies on autoinjectors, pre-filled syringes, and on-body injectors measuring forces required on the part of the user to manipulate a solution’s overall design, individual component parts, or design concept during use. Measured by a network of force sensors and related software and hardware that can interface with any medical device solution or related component of a larger design.
Case study: NASA

NASA

Executed complex human factors engineering research and workstation / user interface (UI) design programs resulting in the creation of a new generation of mission control launch centers for NASA Space Shuttle operations.
Case study: Whitney Museum of Art

Whitney Museum of Art

Executed Advanced Neuroscience-Based Research to Aid in UX Optimization and Brand Enhancement of Whitney.Org and Related Web Presence
Case study: Drug Injector 3D Spatial tracking

Drug Injector 3D Spatial tracking

Conducted several studies capturing micro-levels of object motion as users interact with the medical device or other physical object. It provides a highly refined view of the impact of design shape on a user’s ability to manipulate a medical device in a 3D space.
Case study: Tiffany & Company

Tiffany & Company

Conducted formal ergonomic analysis of subminiature production processes, workstation design, process design, production of advanced ergonomic workstations, and support tools. Also executed worker longevity predictions based on workplace optimization data.
Case study: Google ATAP

Google ATAP

Conducted extensive ergonomic and user prefererence testing for advanced consumer product concepts including application of robust 3D manipulation analysis, EMG testing, and large-scale market segmentation analysis.
Case study: Apple

Apple

Conducted various confidential research programs spanning 3 decades.
Case study: MTV Viacom

MTV Viacom

Conducted multi-year longitudinal usability testing and UX optimization research for multiple primary MTV media properties. Applied advanced cognitive modeling methods in optimization of teen interactions with new media sites.
Case study: Sony

Sony

Complex Total User Experience Optimization (TUXO) Analysis of Portal Music Devices and Online Music Acquisition Systems
Case study: Leukemia and Lymphoma Society LLS

Leukemia and Lymphoma Society LLS

Conducted extensive usability and information transfer analysis of online content categories and presentation formats focused on defining information structures that had the greatest impact on clinical outcomes of cancer patients.

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Our publications demonstrate our established position as a thought leader in the field.

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Our founder, Charles L. Mauro CHFP is widely regarded as a leading expert and innovator in the fields of human factors research and design decision-making.
He has received leading industry awards in multiple fields of practice. He continues to direct the strategic future of the firm. He has served as an expert in over 75 major IP cases representing the world’s leading high technology companies.

Testimonial

1 “I have worked with the MUS team for over a decade and awarded them several million dollars in HF studies and usability testing programs. Their level of professional expertise and attention to detail is outstanding. They are capable of the most advanced HF research and testing in industry today. With a MUS study you know in very short order what is true, reliable and what you need to worry about as a client. Their proactive approach to solving problems is unique.”

Director of Human Factors Research

One of the world’s leading medical and pharmaceutical companies

Whether you're facing usability issues, compliance risks, or technology adoption hurdles, our team is ready to help. Let’s work together to create solutions that actually work—for your business and your users.