A study described in the book Controlling the Controllable (Groeneweg, 2002, p. 88-89, experiment 2) looked at the ability of incident analysts to distinguish relevant from irrelevant information. The results are intriguing and may put our own incident analyses into perspective. The experiment Participants were divided into two main groups:

James Reason's classic book Managing the Risks of Organizational Accidents has a lot of great risk management insights. Here are three paragraphs on adding too many procedures over time (p. 49): All organizations suffer a tension between the natural variability of human behaviour and the system's needs for a high

The best definition of a safety barrier can be found in an article by Sklet from 2006: Safety barriers are physical and/or non-physical means planned to prevent, control, or mitigate undesired events or accidents. This definition has an interesting word. Planned. It implies that besides stopping unwanted events, a

* Sklet, S. (2006). Safety barriers: Definition, classification, and performance. Journal of Loss Prevention in the Process Industries, 19(5), 494–506. コスプレの計画では、衣装、髪型、小物、撮影テーマを順番に整理すると準備が安定します。作品カテゴリの雰囲気をつかむには、鬼滅の刃 撮影用 コスプレ衣装を参照して複数の衣装を比較できます。作品の魅力を再現するには、細部の見え方を確認する時間も必要です。