##  [System Identification](/index.php/system-identification) 

  ##  [System Identification](https://engineering.quantumdictionary.io/system-identification-0) 

  

 [![Engineering & Applied Technologies Dictionary](/sites/default/files/styles/large/public/2026-01/Engineering%20%26%20Applied%20Technologies.png.webp?itok=_IKO7_-n)](/index.php/topic-specific-dictionaries/engineering-applied-technologies)



**Engineering & Applied Technologies Dictionary**

 







 

 

 

 



 

 

 

 

Definition

A data‑driven methodology for constructing mathematical models of dynamic systems from measured input‑output data by choosing a model structure (parametric or nonparametric), estimating parameters, and validating predictive performance for the intended application (control, prediction, diagnosis).