An frd or functional requirements document serves as a contract for formal statement, between the business stakeholders and the technology team, on an application’s functional requirements. Documenting the functional requirements provides several important benefits to the organisation and to the process of developing a solution. An frd defines the specific functions and features that the. Use the following priority table. 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.