# Reliability Command
-
This command creates the reliability domain in which the sensitivity,
reliability and optimization components are kept. This
-
reliability domain is parallel to the finite element (FE) domain in
OpenSees. Currently, the commands for stand-alone sensitivity : analysis
(e.g., sensitivityIntegrator, sensitivityAlgorithm) are set in the
reliability domain only and, thus, the ‘reliability’
```tcl
reliability
```