Connect gateway with non-SAP application

Hi experts,

we are trying to connect our gateway system with a non SAP application which provides REST services, no OData.

Only info I got so far:

"If there is no OData service from the Non-SAP backend, we need to define a Backend Operation proxy

(BOP) to consume the Web Service from the Non-SAP backend as discussed in the below link:

http://help.sap.com/saphelp_gateway20sp06/helpdata/en/64/472d8e21a342ba9d83e403ff4cd9db/frameset.htm"

Searching the forum I only found some old non working links. Also the Help Portal page on how to create BOPs

https://help.sap.com/saphelp_gateway20sp08/helpdata/en/3a/8e956126d741d183b93fa87f30c857/content.htm?frameset=/en/21/1f73f414374e29b41f65b22a81e06d/frameset.htm&current_toc=/en/57/a41787789c4eca867d9a09696fc42c/plain.htm&node_id=566&show_children=true#jump237

doesn`t fit our spro configuration options.

Any help on how to connect the 3rd party system is appreciated.

Thanks,

Oezlem