The illustrations prove that no single tool can be used in isolation when performing an effective study. This applies to enforcement officers inspecting and / or investigating both SMEs and industry.
The categories of basic causes (people, environment, method, plant, equipment and materials) should be relevant considerations for virtually every situation and scenario, despite the detail of each perhaps being different. To illustrate this, the “plant” category could be anything from a domestic fridge to an industrial canning retort, depending on where the officer is inspecting. Despite this wide variety of potential inputs, the tools, approaches, mechanisms, techniques and considerations would be the same or very similar.