Exposing POWL as OData service

Hi Experts,

  Please help me on this particular requirement that I have come across. We have a webdynpro application FITV_POWL_TRIPS for Expense Claims. I need to expose this as an OData service. I have gone through the given link Exposing a POWL as an OData Service - SAP NetWeaver User Interface Services - SAP Library but it was not very successful. If anybody has done something similar please help me as I am very new to this.

Thanks in advance.

Praseeja