What command is used to create a component that can change shape in an assembly?

The command used to create a component that can change shape within an assembly is associated with defining deformable parts. In Siemens NX, a deformable part allows users to modify the geometry of a component in response to assembly constraints or specific design requirements. This capability is vital in applications where components must adapt to fit various configurations or conditions during the assembly process.

By using the command to define a deformable part, the user can create models that react to external forces or changes in the assembly environment, making the design more versatile. This is particularly useful in industries like automotive and aerospace, where components often need to maintain functionality and fit in dynamic conditions.

The other options might suggest different functionalities that do not specifically focus on the ability to change shape in a controlled manner. For instance, while a movable part might imply some level of motion or adjustment, it does not encapsulate the broader design flexibility that a deformable part provides. Configurable parts may refer to managing multiple instances or variations of components but do not inherently include shape-changing capabilities. Thus, defining deformable parts best captures the intent of changing shape within an assembly context.