The SHELL!

Simple, Yet Profound!

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The #SHELL model is a clear and significant explanation of how various aspects can influence #human_performance. It is particularly relevant in high-stress and high-reliability industries like aviation and healthcare. The model is composed of four elements:

– Software,
– Hardware,
– Environment,
– Liveware (you)
– Liveware (others)

All elements interact to impact human performance.

Software involves procedures, policies, and protocols that shape human behaviour.

Hardware refers to physical tools, including equipment that humans use in tasks.

Environment involves conditions and context, such as the physical environment and weather.

Liveware is the humans and teams involved in the task.

The SHELL model emphasises the inter-connection and interdependency of these elements. Any change or shortfall in one element can impact the others, leading to degraded performance or errors.

For instance, a change in software or a failure in hardware can lead to mistakes. The environment can also impact results, as visibility could be impacted by poor weather.

Finally, the Liveware element, factors such as stress, fatigue, and failure to effectively communicate, can also affect results.

Overall, the SHELL model provides a simple yet holistic explanation of how diverse factors can impact human performance in aviation field, highlighting the need to evaluate all four elements to avoid mistakes, errors, mishaps trap or mitigate them.

Addressing potential issues in each element can improve human performance and reduce the risk of incidents or incidents.

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Posted on Linked in April, 2023