RFI, RFP, and RFQ are three common procurement processes used by organizations to gather information, solicit proposals, and request quotes. Here's a brief overview of their differences:

Request for Information (RFI): An RFI is used to collect preliminary information about potential suppliers and their capabilities. It helps organizations assess the market and identify suitable vendors without committing to a formal bidding process. RFIs typically focus on gathering general information, such as company profiles, expertise, and capacity.

Request for Proposal (RFP): An RFP is a formal document that outlines the organization's requirements and solicits detailed proposals from potential vendors. It provides specific criteria, evaluation factors, and contractual terms to help vendors prepare comprehensive responses. RFPs are commonly used for complex projects and services, allowing organizations to evaluate proposals based on various criteria and select the most suitable vendor.

Request for Quotation (RFQ): An RFQ is used to obtain quotes from vendors for specific products or services. It typically includes detailed specifications, quantities, delivery requirements, and any other relevant terms. RFQs are commonly used for procurement of standardized goods or services where price and delivery time are the primary considerations.

In general, RFIs are used at the early stages of the procurement process to gather information, RFPs are used at the middle stages to solicit detailed proposals, and RFQs are used at the later stages to request quotes for specific products or services. Each process serves a unique purpose in the procurement cycle and helps organizations make informed decisions based on vendor capabilities, proposals, and pricing. However, there is some overlap between these three documents, and the specific use of each may vary depending on the organization and the situation.