How do you use the SHEL model to assess and improve the human-machine interface in your SMS?
Human error is a major factor in aviation accidents and incidents, and it can be influenced by the design and operation of the human-machine interface (HMI). The HMI is the part of the system that allows humans to interact with machines, such as cockpit instruments, controls, displays, and alerts. To assess and improve the HMI in your safety management system (SMS), you can use the SHEL model, a framework that considers four elements: software, hardware, environment, and liveware. In this article, you will learn how to apply the SHEL model to identify and address potential HMI issues and enhance human performance and safety.
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Human task analysis:Conducting a Human Task Analysis helps identify friction points in your HMI. By pinpointing these issues, you can implement targeted improvements and streamline user interactions.### *Regular usability testing:Continuously perform usability tests with real operators to uncover blind spots. This ongoing feedback loop allows for constant optimization and enhancement of the human-machine interface.