UNDER CONSTRUCTION
A Request for Proposal (RFP) is a document that solicits proposal, often made through a bidding process, by an agency or company interested in procurement of a commodity, service, or valuable asset, to potential suppliers to submit business proposals.
A Request for Information (RFI) is a standard business process whose purpose is to collect written information about the capabilities of various suppliers. Normally it follows a format that can be used for comparative purposes.
A Request for Qualifications (RFQ) usually refers to the pre-qualification stage of the procurement process. Only those proponents who successfully respond to the RFQ and meet the qualification criteria will be included in the subsequent Request for Proposals (RFP) solicitation process.