An UML model can be visually rendered upon a canvas of a graphical user interface of a software modeling application. The UML model can include at least one stereotype that extends an UML modeling element. A stereotype application can include values of attributes that are part of the stereotype that is applied on the UML modeling element. The visual rendering can include a stereotype application object which is able to be edited. Editing of the stereotype application object can result in changes to values of attributes of the stereotype application.