lessons learned

nouncandidate·updated May 12, 2026

GlossaryL1 — what DictionaryL2 — how used ThesaurusL3 — relations Universaleverything

A set of statements captured after completion of a project or a portion of a project that describes in a neutral way what did or did not work, along with a statement regarding the risk of ignoring the lesson.

MWE

Classifications

per-axis with provenance

Entity Type

Artifact0%rule-basedmulti_axis_classifier_low_confidence.v1

?unassignedlast reviewed —

Sensitivity

—80%llm-generatedllm:claude-haiku-4-5

?unassignedlast reviewed —

Information Class

—85%llm-generatedllm:claude-haiku-4-5

?unassignedlast reviewed —

Variants

4 surface forms

synonym: knowledge gained from analysing and resolving information security incidents
plural: lessons learneds
possessive: lessons learned's
pluralpossessive: lessons learneds'

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