A bowtie or critical control register may be useful tools, but they aren’t the work itself.
In Part 4 of this YouTube series, I unpack what control / barrier models can leave out: e.g. changing conditions, competing goals, control dependencies, unintended consequences and the adaptations people make to keep work functioning.
I also explore how controls can change the systems they are introduced into, why more barriers don’t always mean greater risk control, and why successful work may conceal degraded controls and poor design.
We should still specify, support and verify barriers but also ask:
“What do the people using the control know that the bowtie doesn’t show?”
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