This figure shows an EPN assembly file. It reads:

<wlevs:adapter id="adapter" provider="httppub">

<wlevs:listener ref="channel" />

</wlevs:adapter>

<wlevs:channel id="channel">

<wlevs:listener ref="processor" />

</wlevs:channel>

<wlevs:processor id="processor">

</wlevs:processor>