Uml Datatype Properties Dialog Box. Then open the Features dialog by right-clicking the element and choosing Features Properties Attributes. According to UML 241 specification.
A primitive data type may have precise semantics and operations defined outside of UML for example mathematically. In the Model Explorer. You cant actually tell what the parameters data type is from the Model Explorer or the sequence diagram.
Name of the attribute.
There is a separate interface for doing this which is by clicking in the box and directly editing the text present. The vast majority of software isnt described using UML. A dialog box opens and then you have to select on your file system the uml model which definies the types. Open the Package Properties dialog of a UML package packageuml_pck by right-clicking on it in the Application Navigator and choosing Properties.