What is Product Requirements Document (PRD)?
A Product Requirements Document (PRD) is a single reference that describes what a product or feature must do, for whom, and why. It captures the problem, target users, scope, requirements, success metrics and constraints, giving engineering, design and stakeholders one agreed source of truth to build against.
Reviewed by Gensudo Team · 23 July 2026
In more depth
A PRD sits between strategy and delivery: it translates a validated opportunity into concrete requirements without prescribing implementation. Modern PRDs are lean, living documents rather than exhaustive specs, focusing on outcomes and user problems while linking out to designs, tickets and evidence. They typically state what is explicitly out of scope, which prevents scope creep as effectively as the requirements themselves.
Why it matters
When requirements live only in conversations and chat threads, teams build subtly different things and discover the mismatch late. A PRD makes intent explicit and reviewable, so disagreements surface before code is written. It also gives new joiners and stakeholders a fast way to understand what is being built and why.
A product example
A payments team writing a PRD for refunds specifies who can issue one, the partial-refund rules, the states a payment can move through, and the success metric (refund support tickets down 30%). It explicitly excludes multi-currency refunds from this release to keep scope contained.
Documents where this shows up
Product Requirements Document (PRD) for Product Managers
Related terms
Acceptance Criteria · User Story · Non-Functional Requirements · Decision-Grade Document