NWDI for SAP PI Transports

Hi experts,

I have an implementation in SAP PO 7.4, currently there are no BPM processes proposed in the landscape and we have only SAP PI objects.

Can we go for only NWDI for SAP PI transports?

PS- Gone through many links and blogs which say-

     1- Use CTS+ for SAP PI objects and NWDI for BPM Processes

     2- For iFlows we can use NWDI and other SAP PI objects CTS+.

Please tell what is the recommendation.

Regards,

Vikas