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How to Define Your Software MVP from a PRD: A Step-by-Step Guide

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How to Define an MVP from a PRD

Quick Summary

Learn how to trim a large PRD into a lean MVP with MoSCoW prioritization. Cut scope, keep value, and help AI deliver cleaner results.


Why Every PRD Still Needs an MVP

If you have ever attempted to tackle a software project utilizing AI tools, you have probably experienced that project go off the rails. You probably attempted to remedy that by creating a plan prior to beginning the project in the form of a Product Requirements Document (PRD). The PRD is a comprehensive document that outlines the requirements for a software project. It is a living document that is updated as the project progresses. Click here to learn more about creating a PRD if you haven't.

But here's the uncomfortable truth: trying to build everything at once is a recipe for failure, especially when using AI coding tools.

The AI Context‑Window Problem

This happens because modern AI coding assistants have limitations.

  • Limited context windows cause the to not understand the full context of a given project.
  • Complexity compounds when there are multiple features that interact with each other.
  • Debugging becomes exponential because of the above issues.

How an MVP Solves the AI Context‑Window Problem

Results become better when a project break down the project into smaller, more manageable pieces. The solution? Define a Minimum Viable Product (MVP) that proves your project has legs and is worth pursuing.

MVP Principles:

  1. Core Value First — include only features that deliver the main value proposition.
  2. Complete User Journey — users must finish one meaningful task end‑to‑end.
  3. Quality Over Quantity — five polished features beat fifteen broken ones.
  4. Feedback Ready — stable enough for real user feedback.

The MoSCoW Method: Prioritization Framework

CategoryDescriptionMVP Inclusion
Must HaveCore features without which the product does not work✅ Always
Should HaveImportant features that significantly improve the experience⚠️ Maybe
Could HaveNice‑to‑have features that enhance the experience⚠️ Maybe
Won’t HaveNon‑essential or future‑phase features❌ Never

Real-World Example: Daily Habit Tracker MVP

Let's say you want to build an app that tracks your daily habits. You defined your PRD, and you want to begin work on the project. You're excited because this is the idea that you're going to work through completion. You put in the work, made it comprehensive, planned for over 20 awesome features, all to make it uniquely yours.

The next step will be to define your MVP.

List All Features

Daily habit tracking application features:

  1. Habit Creation & Scheduling
  2. Daily Check‑In
  3. Streak & Calendar View
  4. Basic Onboarding Flow
  5. Account Signup (email/password & OAuth)
  6. Habit Limits Enforcement (max 3 free habits)
  7. Push & Email Reminders
  8. Habit Notes (optional daily comments)
  9. Analytics Dashboard (weekly/monthly stats)
  10. Stripe‑Based Pro Subscription
  11. Performance & Security Essentials (300 ms loads, HTTPS, encryption)
  12. Social Sharing (streak screenshots)
  13. CSV Export of history
  14. Custom Reminder Sounds & Themes
  15. Badges & Trophies for milestones
  16. Advanced Charts (line/bar trend views)
  17. Group Challenges / Leaderboards
  18. AI Coaching & Smart Suggestions
  19. Wearables / Health‑API Integrations
  20. Multi‑User / Family Accounts
  21. Complex Task Dependency Logic

Sort Features Using MoSCoW Method

Organize the features using the MoSCoW method:

  1. Must have.
  2. Should have.
  3. Could have.
  4. Won't have.

Think about the goal of the MVP. help a user mark a habit as done each day. The must have features serve that goal. It helps to map out the minimal workflow for a user to utilize the app.

Minimal Workflow

  1. Open the app.
  2. Tap Done for today’s habit.
  3. See progress.

Ruthless Prioritization Questions

  1. Can the app launch without this feature?
  2. Will the user still complete the minimal workflow?
  3. Does removing it avoid revenue, compliance, or functionality loss?
  4. Is another feature dependent on it?

If any feature doesn't pass any of these questions, it should not be in the MVP.

Results of the MoSCoW Sort

Must Have

  • Habit Creation — name + daily frequency.
  • Daily Check‑In Toggle — one‑tap Done/Not Done.
  • Progress Feedback — simple streak counter or list view.
  • Data Persistence — save habits and check‑ins locally.
  • Minimal UI & Onboarding — create first habit, then main screen.

Should Have

  • Streak & Calendar View
  • Account Signup (email/password & OAuth)
  • Push & Email Reminders
  • Analytics Dashboard (weekly/monthly stats)
  • Performance & Security Essentials (300 ms loads, HTTPS, encryption)

Could Have

  • Habit Limits Enforcement (max 3 free habits)
  • Habit Notes (optional daily comments)
  • Stripe‑Based Pro Subscription
  • Social Sharing (streak screenshots)
  • CSV Export of history
  • Custom Reminder Sounds & Themes
  • Badges & Trophies for milestones
  • Advanced Charts (line/bar trend views)
  • Group Challenges / Leaderboards
  • Wearables / Health‑API Integrations
  • Multi‑User / Family Accounts

Won’t Have

  • AI Coaching & Smart Suggestions
  • Complex Task Dependency Logic

Common MVP Mistakes to Avoid

PitfallWhy it hurtsSimple fix
Treating an MVP like a full v1.0Adds weeks of work and blurs the test signal.Strip scope until a single use‑case still works.
Writing specs the AI can’t fit in its context windowModel loses track and writes the wrong code.Feed one file or feature at a time; link to the full PRD separately.
Confusing an MVP with a prototypeThrowaway demo ends up in production.Decide upfront: prototype for learning, MVP for shipping.
Ignoring non‑functional basics (security, perf)“Lean” release breaks or leaks data.Set a baseline checklist for security and performance.
Over‑relying on AI without human reviewSilent errors pile up.Schedule short daily code reviews to catch drift early.
Feature creepEndless “just one more feature” delays launch.Park new ideas in Should/Could lists for later sprints.
Perfect designWeeks lost polishing pixels before users see value.Use a UI framework; focus on working functionality.
Skipping user feedbackYou build in isolation and miss real needs.Ship to 10 beta users within two weeks and iterate fast.

Conclusion & Next Steps

Cut the scope, build the core, ship fast, learn faster. That’s the cycle.

Next steps

  1. Try it out. Open your PRD. Mark every feature as Must Have, Should Have, or Could Have.
  2. Keep only the Musts. That’s your MVP.
  3. Build it with strict limits—one file, one task at a time.
  4. Put the result in front of real users.
  5. Watch, measure, and revise. Then start the loop again.

FAQ

1. How small should my MVP be? If you can’t build and ship it in 2–4 weeks, it’s probably too big.

2. How do I decide which features make the cut? Run each item through MoSCoW: Must for core value, Should/Could for later, Won’t for now.

3. Do non‑functional requirements belong in the MVP? Yes—set a bare‑minimum checklist (HTTPS, basic auth, 300 ms loads). A broken or unsafe MVP earns no useful feedback.

4. How do I use AI tools without blowing the context window? Feed the model one file or feature at a time; link to the full PRD for reference. Review daily.

5. What if my MVP flops with users? Treat it as data, not failure. Revise your Must list and run the loop again.


Further Resources

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