RFI to supplier performance process

HI,

we want to do the Supplier performance evaluation so, I gone through some documents explained that from RFI, Negotiation style, Negotiation Template we will.

Please anyone provide your guidance to achieve.

Application : R12.2.12

1. process in document like step by step
2. provide document of sample requirements sections, clauses etc.
3. scoring, qualify dis-qualify the supplier and that dis-qualify how we do, not in to use furture.

Thanks all.