Enterprise Architect has some built in stereotypes that you can assign to an element during analysis. The effect of these stereotypes is to display a different icon from the normal element icon, providing a visual key to the element purpose. The diagram below illustrates the main types of inbuilt icons for elements:

The stereotypes used are:
· | Boundary - for a system boundary (eg. a Login screen) |
· | Control - to specify an element is a controller of some process (as in the Model-View-Controller pattern) |
· | Entity - the element is a persistent or data element |