Ariba SIPM integration with SAP ECC for Vendor Master Data

Hi,

We are trying to integrate Ariba SIPM with SAP ECC so that the Vendor Master Data can be created in SAP ECC post approval of Supplier in SIPM.

The 14s release talks about integration via SAP MDG.

Is there any standard way of integration between Ariba SIPM and SAP ECC without SAP MDG ?

Any documentation on the integration (standard or custom) would be helpful.

Thanks