If you listen very closely you can hear the seismic rumblings across your entire enterprise software architecture. End to end implied that your business processes would progress unimpeded between internal applications and external business partners, regardless of platform, language, applications, or transport mechanism. Eventually you discovered that end to end actually meant point to point. In the end, it didn't account for how quickly your world changes.
End 2 End is Nothing
Web services standards represent a breakthrough that has markedly changed this equation. IONA calls its approach to the integration task, both inside and outside the firewall, End 2 Anywhere, or E2A.
End 2 End is Nothing
End to Anywhere is everything
IONA E2A