# Product requirements document (PRD) example > A finished 20-page PRD, written by Ainna for VentureForce. Three pages are open here; the other 17 stay closed. A finished example, not a template. Page: https://ainna.ai/documents/prd · Word · 20 pages · Document 08 of 12, the product · Updated 6 October 2026 · Document designs by George Krasadakis ## The pages on show - Page 1 of 20, Title page: The product, its promise and a one-paragraph summary. Image: https://ainna.ai/images/examples/prd-example-01-1200.webp - Page 7 of 20, The solution and the happy path: How it works, the features with their priorities, and one user's path through the product. Image: https://ainna.ai/images/examples/prd-example-07-1200.webp - Page 9 of 20, Requirements: Every requirement as a user story, traced to a feature, with its priority. Image: https://ainna.ai/images/examples/prd-example-09-1200.webp The other 17 pages stay closed. ## What is a product requirements document (PRD)? A product requirements document (PRD) says what to build and why: the users, the requirements as user stories, the MVP scope, success metrics, risks and the delivery plan, clear enough for engineers and for leadership. Also called: PRD, Product requirements doc. ## Why it matters Without one document, every team builds its own picture of the product: scope creeps, priorities drift, and the product launches without a coherent story. The PRD is the single source of truth that product, engineering, design and leadership all read. Free templates give you headings; a PRD worth the name is a system, where every section rests on the analysis before it. ## The product lifecycle, in four parts Ainna's PRD follows the lifecycle of Innovation Mode 2.0, from the opportunity to the market. 1. **Discover.** The problem, the users, the market and the competition. In Ainna's document: the problem, and the users in full. 2. **Define.** The vision, the value proposition, the happy path, the MVP scope and the business model. In Ainna's document: the solution and the happy path, the MVP, the business model. 3. **Build.** The requirements, the quality targets, and the risks to retire before writing code. In Ainna's document: the requirements as user stories, the quality requirements, the risks. 4. **Launch.** The plan and the measures of success. In Ainna's document: the plan and the success metrics. The method as a template: [PRD Toolkit](https://theinnovationmode.com/prd-toolkit). The PRD templates and two annotated product cases, on theinnovationmode.com. ## What's inside - The product at a glance - The need - The users, in full - The solution and the happy path - The MVP, and what is out - Requirements, as user stories - Quality requirements - Business model - Risks - Plan and success metrics ## Where it comes from Distilled from six analyses: the personas, the market sizing, the competitive map, the product definition, the business plan and the delivery plan. Comes after: [Idea One-Pager](https://ainna.ai/documents/idea-one-pager) · [Pitch Deck](https://ainna.ai/documents/pitch-deck) Leads to: [Product Requirements Deck](https://ainna.ai/documents/prd-deck) · [PRD Executive Brief](https://ainna.ai/documents/prd-brief) · [Functional Requirements Specification (FRS)](https://ainna.ai/documents/frs) · [System Analysis, Design and Architecture](https://ainna.ai/documents/architecture) ## Questions **How is a PRD different from a product concept?** In Innovation Mode's sequence, the product concept comes first: why the product should exist, for whom, and how it wins. Ainna's PRD carries that concept and adds the requirements as user stories, the MVP and the plan. The exhaustive how (every rule, validation and acceptance test) belongs to the FRS. **What is the difference between a PRD and an FRS?** A PRD says what to build and why: the problem, the users, the requirements as user stories, the scope and the plan. An FRS says exactly how the system must behave: every rule, validation, exception, interface and acceptance test, traced back to the PRD's requirements. Product and leadership decide with the PRD; engineers and testers build and test from the FRS. **How long should a PRD be?** Long enough to be unambiguous, short enough to be read. Ainna's runs to about 20 pages, with the requirements in tables. **Is there a PRD template?** This is a finished PRD, not a template. The guide shows the structure, and Ainna writes yours from your own analysis. ## Links - Guide: [How Do You Write a Great PRD?](https://ainna.ai/resources/faq/prd-guide-faq) - Guide: [How Do You Write User Stories That Actually Drive Development?](https://ainna.ai/resources/faq/user-stories-agile-faq) - The method: [PRD Toolkit](https://theinnovationmode.com/prd-toolkit) - The problem behind the idea: [Problem 0032 on Problem Radar](https://ainna.ai/problems/workforce-unprepared-for-the-disruption-ai-is-bringing) - All twelve documents: https://ainna.ai/documents (Markdown: https://ainna.ai/documents.md) ## Clarity, by design Every document is architected and designed for one purpose: clarity. The designs are original, built on the method of Innovation Mode 2.0 (Springer Nature, 2026), where some of them are published. Its author, George Krasadakis, has spent 25 years building products, in a career that spans Microsoft, Accenture, GSK and ResMed. Ainna distils your work into each one: every claim in its place, every figure with its source or its assumption. Decks are set in Roboto, documents in Georgia. ## About the sample It comes from one public problem, number 0032 on Problem Radar (https://ainna.ai/problems/workforce-unprepared-for-the-disruption-ai-is-bringing), which Ainna framed and developed into one idea, VentureForce. It is a concept, not a company; its market figures are AI estimates.