Talk:Why–because analysis

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What do the Why-because graph shapes mean?

The article features an interesting Partial Why–because graph of the capsizing of the Herald of Free Enterprise, with rectangles, ovals, hexagons, and diamond shapes. Presumably these shapes should mean something, perhaps categorizing a given event's type of cause, (e.g. necessary, sufficient, contributing, or something...), but there's no explanation of what a given shape means.

The single reference URL to Analysing Aviation Accidents Using WB-Analysis - an Application of Multimodal Reasoning does not include this graph and is therefore no aid in deciphering these shape meanings. AC (talk) 16:14, 26 February 2023 (UTC)[reply]