Question 1

What is a product requirements document (PRD)?

Accepted Answer

A product requirements document (PRD) is a detailed document that outlines what a product should do, who it is for, and how it should work. It serves as the single source of truth for product teams, designers, and developers throughout the build process. A well-written PRD typically includes the product overview and objectives, target users and personas, functional requirements and user stories, non-functional requirements like performance and security, UI/UX guidelines, technical architecture considerations, success metrics and KPIs, timeline and milestones, and dependencies and assumptions. PRDs bridge the gap between the product vision and the engineering execution. They ensure everyone on the team understands what is being built, why it matters, and how success will be measured.

Question 2

How do you write a PRD?

Accepted Answer

Writing a PRD starts with clearly defining the problem you are solving and who you are solving it for. Begin with an executive summary that captures the product vision in 2 to 3 sentences. Then define your target users with specific personas including their goals, pain points, and behaviors. Next, list functional requirements as user stories in the format: As a [user type], I want to [action] so that [benefit]. Prioritize these using MoSCoW (Must have, Should have, Could have, Won't have). Add non-functional requirements covering performance, security, scalability, and accessibility. Include wireframes or UI mockups if available. Define success metrics and KPIs that will tell you whether the product achieved its goals. Finally, outline the timeline with milestones and note any dependencies, risks, or assumptions. The best PRDs are living documents that evolve as you learn more from user research and testing.

Question 3

What is the difference between a PRD and a BRD?

Accepted Answer

A PRD (Product Requirements Document) and a BRD (Business Requirements Document) serve different purposes and audiences. A BRD focuses on the business need — it defines the problem from a business perspective, outlines business objectives, stakeholder expectations, and success criteria. It answers the question: why are we building this? A PRD focuses on the product solution — it defines exactly what the product should do, how users will interact with it, what features it needs, and how it should be built. It answers the question: what are we building and how will it work? In practice, the BRD comes first and is typically written by business analysts or stakeholders. The PRD follows and is written by product managers. The BRD informs the PRD. For startups and smaller teams, these are often combined into a single document, but enterprise organizations typically maintain them as separate artifacts.

Question 4

What should a PRD template include?

Accepted Answer

A comprehensive PRD template should include these core sections: Executive Summary — a brief overview of the product, the problem it solves, and its target audience. Objectives and Goals — specific, measurable goals the product aims to achieve. Target Users — detailed personas including demographics, behaviors, pain points, and needs. User Stories and Requirements — functional requirements written as user stories, prioritized by importance. Non-Functional Requirements — performance benchmarks, security standards, accessibility requirements, and scalability expectations. UI/UX Design — wireframes, user flows, and design guidelines or references. Technical Architecture — high-level technical approach, platform choices, integrations, and data models. Success Metrics — KPIs and measurement methods to evaluate product success. Timeline and Milestones — phased delivery plan with key dates. Dependencies and Risks — external dependencies, assumptions, and potential blockers. The best templates are flexible enough to adapt to different product types while ensuring nothing critical is overlooked.

Question 5

Can AI generate a good product requirements document?

Accepted Answer

Yes, AI can generate a solid first draft of a PRD that covers all the essential sections and provides a strong starting point. AI PRD generators work best when you provide a clear product description, target audience, and key features. The AI can then structure this into a professional document with user stories, technical requirements, success metrics, and a timeline. However, AI-generated PRDs should be treated as a starting point, not a final document. You will want to review and customize the output by adding company-specific context, refining user stories based on your actual user research, adjusting technical requirements to match your existing stack, and validating priorities with your stakeholders. The biggest advantage of using an AI PRD generator is speed — you can go from a product idea to a structured first draft in minutes instead of hours, freeing up your time to focus on refinement and stakeholder alignment.

Question 6

What is a good PRD example for a mobile app?

Accepted Answer

A good mobile app PRD example would cover: Product Overview — A marketplace app connecting local service providers with customers. Problem Statement — Customers struggle to find reliable, vetted local service providers, and providers lack a platform to reach new customers. Target Users — Primary: homeowners aged 25 to 55 who need home services. Secondary: independent service providers looking to grow their client base. Core Features (MVP) — User registration and profiles, service listing and search with filters, booking and scheduling, in-app messaging, ratings and reviews, payment processing via Stripe. Non-Functional Requirements — Page load under 2 seconds, support for 10,000 concurrent users, WCAG 2.1 AA accessibility, end-to-end encryption for messages. Success Metrics — 1,000 bookings in first 3 months, 4.5 star average provider rating, 60 percent month-over-month user retention. Timeline — Phase 1 MVP in 12 weeks, Phase 2 with advanced features in weeks 13 to 24. This structure gives the development team everything they need to start building while keeping the scope manageable.

PRD Section	What It Covers
Executive Summary	Product vision in 2–3 sentences
Target Users	Personas with goals, pain points, behaviors
User Stories	Functional requirements as "As a [user], I want..."
Non-Functional Reqs	Performance, security, scalability
Success Metrics	KPIs to measure product success
Timeline	Phased delivery plan with milestones

	PRD	BRD
Purpose	Defines what the product does and how it works	Defines the business need and why we're building it
Audience	Product team, designers, developers	Stakeholders, executives, business analysts
Focus	Features, user stories, technical specs	Business goals, ROI, market opportunity
Written By	Product manager	Business analyst or stakeholder
Answers	"What are we building and how?"	"Why are we building this?"

Free AI PRD Generator

What Is a Product Requirements Document (PRD)?

How to Write a PRD: Step-by-Step

PRD vs BRD: What's the Difference?

Frequently Asked Questions