Model Elements can be deleted in the Project Explorer or Diagram Editor. To delete an element in the Project Explorer, right-click the element and select Delete from Model. Elements can also be deleted in the same way in the Diagram Editor.
In the Diagram view, you can choose to delete an element just from the diagram, or from the complete model. Deleting an element from the model means that the element will be unavailable to other parts of the model and will be removed from the Project Explorer tree.
Important: References to other elements in Rational Software Architect are maintained by an internal identifier system. Each element is given a unique identifier on creation and references are made to this unique identifier. This differs from Rational Rose where references could be determined both by id and qualified name. It is therefore important to note that if a class is removed, recreating the class with the same name is not sufficient to correct any broken references and the broken reference resolution process will be required to reconnect broken references.