[provide a list of contractual or task level assumptions and/or constraints that are preconditions to preparation of the frd. Streamline your project planning with our comprehensive functional requirements document template. To help you upsurge towards your business goals, we suggest you to try using a business requirements document. This document underlies the functional requirements for implementing online banking solution (obs) for global bank ltd (gbl). Assumptions are future situations beyond the control of the project,.