The Cynefin (Welsh word commonly translated as ‘habitat’ or ‘place’) framework is used to describe problems, situations and systems. It provides a typology of contexts that guides what sort of explanations and/or solutions may apply.
A picture worth 1000 words (source here):
please note that
the boundary between simple and chaotic is seen as a catastrophic one: complacency leads to failure.
source: Cynefin Wikipedia
source #2: Of Cynefin, failure, memory patterns and other stories