measurement-disciplinelisted

# Measurement Discipline **Problem shape:** a quantity is being read, improved, or argued about, but the instrument, the unit, or the conservation ledger behind it has never been audited. Symptoms: residuals outside noise, metrics without operational definitions, inputs and outputs that don't balance, observer effects, one-method-only results. ## Relevant geniuses | Agent | Use when | |---|---| | [curie](../../agents/genius/curie.md) | measured > predicted from known parts; instrument missing or unit undefined; measurement may perturb the system (Heisenbugs, observability overhead) | | [shannon](../../agents/genius/shannon.md) | "improving X" where X has no formal definition; method proposed without knowing the theoretical limit; a metric with no repeatable procedure | | [lavoisier](../../agents/genius/lavoisier.md) | money, data, requests, or time "disappearing"; inputs and outputs never balanced; the residual needs a name and a carrier | | [galileo](../../agents/genius/galileo.md) | phenomenon obscured by secondary effects; too fast/large/rare to observe directly; qualitative claims that need a number | | [einstein](../../agents/genius/einstein.md) | a concept in the metric has no measurement procedure; the rule gives different answers from different viewpoints | | [deming](../../agents/genius/deming.md) | reacting to noise as if it were signal — common vs special cause not separated | | [ekman](../../agents/genius/ekman.md) | a "subjective" domain needs objective coding