• J R Coll Physicians Edinb · Jan 2014

    Hot cheese: a processed Swiss cheese model.

    • Y Li and H Thimbleby.
    • Y Li Computer Science Swansea University Swansea SA2 8PP. Email yunqiu.li@swansea.ac.uk.
    • J R Coll Physicians Edinb. 2014 Jan 1;44(2):116-21.

    AbstractJames Reason's classic Swiss cheese model is a vivid and memorable way to visualise how patient harm happens only when all system defences fail. Although Reason's model has been criticised for its simplicity and static portrait of complex systems, its use has been growing, largely because of the direct clarity of its simple and memorable metaphor. A more general, more flexible and equally memorable model of accident causation in complex systems is needed. We present the hot cheese model, which is more realistic, particularly in portraying defence layers as dynamic and active - more defences may cause more hazards. The hot cheese model, being more flexible, encourages deeper discussion of incidents than the simpler Swiss cheese model permits.

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