| EPA | Portlet | IFRAME |
|---|---|---|
| Icon & name | N/A | |
| Notification UI | ? | N/A |
| Properties ? | app/page/instance | CSS |
| Window ? | view modes (thumb, short text, preview, full ) | N/A |
| full screen ? | full page, no fullscreen |
| EPA api | Portlet api | IFRAME api |
|---|---|---|
| ? | messaging across portlets | PostMessage |