# Parameter Uncertainty **Entity class:** Uncertainty And Evidentiary Layer concept **Parameter Uncertainty** is an evidentiary control for representing limits, error, bias, or confidence rather than silently converting inference into fact. Parameter Uncertainty matters because the analytic object is a changing, partially observed system rather than a finished dossier. ## Counterterrorism predictive-graph role Its controls are part of the computational trust fabric, not peripheral paperwork: permissions, provenance, purpose, and auditability must remain machine-enforceable across systems. The analytic state should distinguish ground truth, observed evidence, inferred state, and predicted state. ## Relationships - **domain router:** [[wiki/Uncertainty Quantification|Uncertainty Quantification]]. - **ontology neighbors:** [[wiki/Measurement Uncertainty|Measurement Uncertainty]] and [[wiki/Predictive Uncertainty|Predictive Uncertainty]]. - **synthesis:** [[wiki/Counterterrorism Predictive Graph|Counterterrorism Predictive Graph]] and [[wiki/Predictive Intelligence Loop|Predictive Intelligence Loop]]. ## Sources - [NIST/SEMATECH — e-Handbook of Statistical Methods (accessed September 23, 2026)](https://www.itl.nist.gov/div898/handbook/) - [Oden Institute — Tan Bui-Thanh research profile (accessed September 23, 2026)](https://oden.utexas.edu/people/directory/Tan-Bui/) **As of:** 2026-09-23