Assumptions are future situations beyond the control of the project,. This comprehensive guide will equip you with the knowledge and tools to create a robust and effective frd template. 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. Business requirements documents (brds) center on strategic objectives, business processes and user needs at a high level. [provide a list of contractual or task level assumptions and/or constraints that are preconditions to preparation of the frd.