# UpdateParameter Command
Once the parameters in FE model are defined, their value can be updated:
```tcl updateParameter $tag $newValue ```

tag

integer tag identifying an existing parameter that is to be updated.

<specific object arguments>

the updated value to which the parameter needs to be set.


Reference:
Scott M.H., Haukaas T. (2008). “Software framework for parameter updating and finite element response sensitivity analysis.” Journal of Computing in Civil Engineering, 22(5):281-291.