How to Write a Product Requirements Document (PRD) [Template]

Why You Need a PRD

A PRD is the contract between the business (what we need) and the engineering team (what we will build). Without it, developers make assumptions about requirements, designers guess at user needs, and stakeholders discover misalignment only when the product is built — when fixing it is 10-30x more expensive than getting it right upfront.

Common symptoms of missing or weak PRDs:

• "That is not what I meant" — stakeholders see the finished feature and it does not match their expectation
• "Can we just add this one thing?" — scope creep that delays delivery by weeks or months
• "I thought you were building X" — team members have different understandings of the same feature
• "When will it be done?" — no clear scope makes estimation impossible

A PRD does not need to be a 50-page document. For an MVP feature, a 2-3 page PRD is sufficient. The goal is clarity and alignment, not documentation for its own sake.

PRD Template: Section by Section

1. Overview

A brief summary of what this document covers. Keep it to 3-5 sentences.

• Product/Feature name: What are we calling this?
• Author: Who wrote this PRD?
• Date: When was it last updated?
• Status: Draft / In Review / Approved
• Stakeholders: Who needs to approve this? (Product Owner, Engineering Lead, Design Lead, Business Sponsor)

Example: "This PRD defines the requirements for the Appointment Booking Module of the ClinicPro ERP system. This module allows clinic receptionists to book, reschedule, and cancel patient appointments with real-time availability checking and SMS confirmation."

2. Problem Statement

What problem are we solving? Why does it matter? Who is affected?

• Describe the current situation and its pain points
• Quantify the impact if possible ("Receptionists spend 45 minutes per day managing appointments manually, leading to 15% double-booking rate")
• Explain what happens if we do not solve this

Example: "Currently, clinic receptionists at [Client Name] manage appointments using a paper register and WhatsApp messages. This leads to double-bookings (estimated 15% of appointments), missed appointments due to no automated reminders (20% no-show rate), and 45+ minutes daily spent on manual scheduling. Patients report frustration with the booking process, and the clinic estimates ₹30,000-50,000/month in lost revenue from no-shows and scheduling errors."

3. Target Users

Who will use this feature? Define user personas with their roles, goals, and technical context.

• Primary users: The people who use the feature daily (e.g., clinic receptionists)
• Secondary users: People who interact with it occasionally (e.g., doctors viewing their schedule)
• Affected parties: People impacted by the feature even if they do not use it directly (e.g., patients receiving SMS confirmations)

For each user type, note: their technical comfort level (important for UI complexity decisions), the device they will use (desktop, mobile, tablet), and their primary goal with this feature.

4. User Stories and Acceptance Criteria

This is the core of the PRD. Each feature is described as a user story with specific acceptance criteria that define "done."

User story format: "As a [user type], I want to [action] so that [benefit]."

Acceptance criteria format: "Given [context], when [action], then [expected result]."

Example:

User Story: "As a receptionist, I want to book an appointment by selecting a doctor, date, and time slot so that the patient's visit is scheduled and confirmed."

Acceptance Criteria:

• Given the receptionist selects a doctor, when the date picker loads, then only dates within the next 30 days are selectable
• Given a date is selected, when the time slots load, then only available (unbooked) slots for that doctor are shown
• Given all fields are filled, when the receptionist clicks "Book," then the appointment is saved, a confirmation SMS is sent to the patient, and the slot is marked as booked
• Given a slot is already booked, when another receptionist tries to book the same slot, then the system shows an error and suggests the next available slot

Write acceptance criteria for every user story. This eliminates ambiguity and gives QA engineers clear test cases.

5. Feature Priority (MoSCoW)

Not all features are equal. Categorise using MoSCoW:

• Must-have: Features without which the product is not viable. These ship in Phase 1.
• Should-have: Important features that can wait for Phase 2 if needed. Removing them does not break the core value.
• Could-have: Nice-to-have features that enhance the experience. Only built if time permits.
• Won't-have (this release): Explicitly out of scope. Documenting what you are NOT building is as important as documenting what you are building — it prevents scope creep.

Priority	Feature	Rationale
Must	Book/cancel/reschedule appointments	Core functionality
Must	Real-time slot availability	Prevents double-booking
Must	SMS confirmation to patient	Reduces no-shows by 30%
Should	Doctor's schedule view (daily/weekly)	Doctors need visibility
Should	WhatsApp reminder (24h before)	Further reduces no-shows
Could	Patient self-booking portal	Reduces receptionist workload
Won't	Video consultation booking	Phase 2 scope

6. Success Metrics

How will you know the feature is successful? Define measurable KPIs before development starts.

• Double-booking rate drops from 15% to under 2%
• No-show rate drops from 20% to under 10% (with SMS reminders)
• Receptionist time spent on scheduling drops from 45 minutes/day to 10 minutes/day
• 90% of appointments booked through the system within 30 days of launch (adoption metric)

Without success metrics, you cannot evaluate whether the feature delivered value. Metrics also help prioritise future improvements — focus on the metric that moved the least.

7. Constraints and Assumptions

Document any limitations that affect the design or implementation:

• Technical constraints: "Must work on tablets with minimum 768px screen width" or "Must integrate with existing Tally accounting system"
• Business constraints: "Must be live by March 15, 2026" or "Budget for this phase is ₹3 lakh"
• Assumptions: "We assume the clinic has reliable internet connectivity" or "We assume SMS delivery rate is 95%+" — list assumptions so they can be validated
• Dependencies: "Requires the Patient Management module to be completed first" or "Depends on Twilio API for SMS"

8. Non-Functional Requirements

Requirements that are not about features but about quality:

• Performance: "Appointment booking page loads in under 2 seconds on 4G"
• Security: "Patient data encrypted at rest and in transit. Role-based access control."
• Availability: "99.5% uptime during clinic hours (8 AM - 8 PM IST)"
• Scalability: "System should handle up to 500 appointments per day per clinic"
• Compliance: "Must comply with Indian IT Act data protection requirements"

Common Mistakes to Avoid

• Writing HOW instead of WHAT: A PRD should not specify database schema, API design, or UI component choices. Define what the user needs, not how to implement it. "The system shall store appointment data" is a requirement. "Use a PostgreSQL table with columns for…" is implementation.
• Vague requirements: "The system should be fast" is useless. "Pages load in under 2 seconds on 4G" is testable. Every requirement should be specific and measurable.
• No priority distinction: If everything is "must-have," nothing is prioritised. Be honest about what is truly essential for launch vs what can wait.
• Writing a novel: A 50-page PRD that nobody reads is worse than a 3-page PRD that everyone understands. Be concise. Use bullet points, tables, and user stories — not paragraphs of prose.
• No stakeholder sign-off: A PRD that is not reviewed and approved by stakeholders will be challenged during development. Get explicit approval before development starts.
• Set it and forget it: PRDs are living documents. As you learn from development and user feedback, update the PRD. But always go through a change management process — not informal "can you just change this" requests.

Tools for Writing PRDs

• Notion: Best for collaborative PRDs. Templates, databases for user stories, comments for review. Our recommendation for most teams.
• Google Docs: Simple, familiar, excellent for review with comments and suggestions mode. Works when your stakeholders are not technical.
• Confluence: Atlassian's wiki — best if your team uses Jira. Direct linking between PRD requirements and Jira tickets.
• Linear Docs: If you use Linear for project management, their built-in docs keep PRDs close to implementation.

How JK Tech Hub Helps

At JK Tech Hub, we do not start coding until the PRD is clear and approved. Our scoping process includes:

• Free discovery workshop to understand your requirements
• PRD creation with user stories, acceptance criteria, and MoSCoW prioritisation
• Wireframes for key screens (visual complement to the PRD)
• Technical architecture document (our engineering team's response to the PRD)
• Fixed timeline and cost estimate based on the approved PRD

This upfront investment in requirements prevents 80% of the miscommunication and scope creep that causes project failures. Book a free scoping session.

Related Resources

• Software Project Management Complete Guide
• MVP vs Prototype vs PoC
• Product-Market Fit Guide
• Web Application Development
• Development Cost Calculator

Sources & References

• Standish Group — CHAOS Report (Impact of Requirements on Project Success)
• ProductPlan — Product Requirements Document Guide
• Atlassian — Agile Requirements Documentation

Need help writing your PRD? Contact JK Tech Hub for a free scoping session. We help define clear requirements before writing a single line of code — 150+ projects, 4.9/5 rating, based in Rajkot, Gujarat. Get an instant estimate.