Documenting the functional requirements provides several important benefits to the organisation and to the process of developing a solution. The functional requirements document (frd) is a formal statement of a product's functional requirements. [provide a list of contractual or task level assumptions and/or constraints that are preconditions to preparation of the frd. This document is a functional requirements document (frd) template that outlines the sections and content needed for documenting software requirements. A user requirements document, written by the product manager, is centered around the end user’s needs and expectations for a product.it translates user requirements into.