Usability Process: The Path to Safe Health Technology
The usability process in health technology development forms the foundation for safe and effective solutions. As medical devices and software become more deeply integrated into clinical work, their usability directly impacts patient safety and the well-being of healthcare professionals. Systematic usability design is not only a regulatory requirement but also a strategic competitive advantage that distinguishes successful health technology solutions in the market.
Why is Usability a Critical Factor in Health Technology?
The importance of usability for patient safety and healthcare professionals’ work is undeniable. A poorly designed user interface or complex workflow can lead to serious errors in critical care situations. Health technology often operates in high-stress environments where rapid decisions and precise actions are vital. The effects of usability issues extend from patient safety to healthcare professionals’ job satisfaction and organizational efficiency.
The most common usability problems in health technology relate to complex navigation structures, unclear instructions, and insufficient user feedback. These issues are particularly pronounced in situations where different professional groups use the same device or software in varied operating environments. The role of regulatory requirements in ensuring usability is significant, as the EU Medical Device Regulation (MDR 2017/745) and In Vitro Diagnostic Regulation (IVDR 2017/746) require comprehensive usability documentation and testing as part of the product’s safety assessment.
Systematic Approach to the Usability Process
The stages of the usability process—from design to implementation—form a continuous development cycle that begins with mapping user needs and ends with ongoing monitoring of the product on the market. The process integrates naturally with software lifecycle requirements, such as the development model defined in the IEC 62304 standard. The principles of user-centered design in health technology emphasize understanding real operating environments and considering diverse user groups.
The integration of risk management with usability work and the development of quality management systems form the backbone of the usability process. Risk management according to the ISO 14971 standard is directly linked to the identification and control of usability risks. Usability risks can arise from user errors, misunderstandings, or inadequate training. A systematic approach ensures that these risks are identified at an early stage and addressed through design solutions before costly later changes are needed.
A well-designed usability process saves time and keeps overall costs under control when product development is carried out from the beginning in accordance with industry requirements and in collaboration with users.
The Role of Usability Testing in Safe Product Development
Usability testing methods and their application in health technology are divided into formative and summative testing. Formative testing supports the iterative design process, while summative usability testing is a mandatory safety test for the usability of a medical device. It verifies at the end of product development that the product meets the set objectives and requirements regarding usability.
Utilizing test results in product development and risk assessment requires systematic documentation and analysis. The test results feed information back into the design process and risk management, enabling evidence-based decision-making. The process of continuous improvement and its importance in long-term product strategy are particularly emphasized in post-market surveillance, where feedback from the real operating environment guides further product development.
A successful usability process requires expertise in both usability design and the regulatory environment of health technology. Organizations benefit from external expertise especially during the process initiation phase and at critical testing points. Conducting usability testing in a simulated hospital environment provides a realistic picture of the product’s performance in actual use conditions, which is essential for obtaining reliable results.
