Definitionv1
Error budget: a predefined tolerance level for deviations
Error budget: a predefined tolerance level for deviations from ideal system performance, expressed as the maximum acceptable amount of error or failure before triggering a corrective response, which distinguishes signal from noise and enables rational resource allocation for error correction
Why This Is a Definition
This definition clearly establishes the term 'error budget' by naming it, stating its genus (a tolerance level for system performance), and its differentia (expressed as maximum acceptable error before corrective response). It distinguishes error budget from perfectionism and explains its functional purpose in separating signal from noise and enabling rational resource allocation. It's precise enough to distinguish from related concepts like zero tolerance or mere standards.