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How to Prioritize Your Bugs: a 2024 Guide

Bugs in software are like weeds in a garden; no matter how much you tend, they find a way to pop up. For product managers, the real task goes beyond just spotting these bugs - it’s about knowing which ones to tackle first. 

This process is a delicate dance of weighing technical severity against business impact. And let’s clear the air - you don’t need to be a master coder to ace this. 

It’s about strategic thinking and making choices that align with your product’s health and goals.

This article offers a clear roadmap. In it, we will:

  • Learn to classify bugs by severity, from critical system-crashers to trivial UI tweaks.
  • Understand the importance of user experience in determining bug priority.
  • Discover how aligning bug fixes with business goals can streamline your approach.

Armed with these insights, you’ll be more than ready to tackle the bug backlog head-on, turning chaos into order one bug at a time.

Understanding the Impact and Importance of Bug Prioritization

Let’s face it, bug prioritization might not be the most glamorous part of your job, but it’s as essential as having a good coffee machine in the office. It’s all about bringing order to the chaos of bugs clamoring for attention. 

Prioritizing bugs is not just about ticking boxes; it’s a strategic move that defines the battle plan for your development team.

Why bother, you ask? Well, for starters, it helps your team focus on fixing what really matters – the bugs that are turning your product into a digital haunted house rather than just a slightly annoying creaky door. 

It’s about nipping the biggest problems in the bud, so your users don’t have to deal with a digital meltdown.

And let’s talk about aligning these bug fixes with your business goals. This is where you get to be the hero, choosing to tackle the bugs that are scaring away users or breaking crucial features first.

As for those times when you need to rally the troops for a workshop-style prioritization session? That’s when you’re staring at a mountain of bugs and need to make sense of it all. It’s like hosting a dinner party where everyone’s a picky eater – you need everyone’s input to avoid a culinary disaster.

So, let’s roll up our sleeves and get into the nitty-gritty of bug prioritization. It’s not just about fixing things; it’s about fixing the right things.

Consider These When Prioritizing Bugs

Prioritizing bugs can sometimes feel like you’re trying to decide which wire to cut on a ticking bomb. 

It’s a high-stakes game where each decision can dramatically affect your product’s health and user experience. 

Here’s our best list of things that every PM should consider in the bug prioritization process.

  • Impact on Users: First and foremost, ask how a bug impacts the end user. If it’s turning their experience into a digital nightmare, it’s high on the priority list. Remember, a frustrated user is a potential lost customer.
  • Frequency of Occurrence: Is this bug a rare unicorn or a frequent flyer? Bugs that occur more often are usually more visible and annoying to users, hence deserving quicker action.
  • Severity of the Bug: Not all bugs are created equal. Some are annoying little gremlins, while others are full-blown monsters. Severity ranges from minor UI issues to critical bugs that crash systems or cause data loss.
  • Business Critical Features: Prioritize bugs that affect features directly tied to your business goals or revenue. If a bug is blocking a major feature of your product, it’s like a roadblock on the highway to success.
  • Resource Availability: Who’s available to fix the bug, and what are their skills? Sometimes, the reality of resource constraints means you might have to prioritize a bug lower if it requires expertise that’s currently unavailable.
  • Complexity and Time to Fix: Some bugs can be squashed quickly; others need a more strategic approach. Estimate the time and effort required to fix each bug, and balance this with its impact and urgency.
  • Dependencies: Some bugs are part of a bigger web. They might be tied to other features or code areas. Understanding these dependencies is crucial to avoid a domino effect of new bugs.
  • Risk of Fixing: Fixing a bug can sometimes introduce new ones. Evaluate the risk associated with resolving each bug, especially in complex code areas.
  • User Feedback: Keep an ear to the ground. User forums, support tickets, and feedback channels are goldmines for understanding which bugs are causing the most pain.
  • Regulatory and Compliance Issues: If a bug relates to security, privacy, or regulatory compliance, bump it up the priority list. These aren’t just bugs; they’re potential legal nightmares.
  • Timing and Release Schedule: Align bug fixing with your release schedule. Sometimes, it makes sense to hold off on fixing a minor bug if a major update is around the corner.
  • Workaround Availability: If there’s a temporary fix or workaround available for a bug, it might buy you some time to focus on more severe issues.
  • Public Perception: Bugs that have gained public attention, especially on social media or tech forums, need quick addressing to maintain your product’s reputation.
  • Past Bug History: Look at the history of similar bugs. This can give insights into potential causes, solutions, and the effort required to fix them.
  • Product Roadmap: Consider your product’s future. If a bug affects a feature that’s about to be deprecated or revamped, it might not be worth the resources to fix.
  • Testability: How easily can the bug be replicated and tested? Bugs that are hard to reproduce can be tricky to fix and might require more investigative resources.

Remember, bug prioritization is part art, part science. It’s about making informed decisions that balance the technical aspects with the business and user impact. So, go ahead, put on your bug-hunting hat, and start prioritizing. 

Remember, in the world of software, the only thing worse than a bug is a bug that’s been ignored.

Classification: From P0 to P4

In the bug-squashing world, bugs are often classified into a hierarchy from P0 to P4. This system helps you prioritize bugs based on their severity and impact on the project. 

Here’s a quick breakdown:

P0 – ‘Drop Everything and Fix Now’:

  • Severity: These are the deal-breakers, the kinds of bugs that cause crashes, major functionality breakdowns, or severe security vulnerabilities.
  • Impact: P0 bugs are a red alert. They can severely damage user trust, revenue, and could even have legal implications.
  • Response: These bugs should be addressed immediately. It’s all hands on deck, and other tasks take a back seat until the issue is resolved.

P1 – ‘High Priority’:

  • Severity: These are significant bugs that impact major functionalities but don’t necessarily cause total system failure.
  • Impact: P1 bugs are major roadblocks for users or critical business processes but aren’t as apocalyptic as P0 bugs.
  • Response: These should be fixed promptly, ideally in the current development cycle or within a short timeframe.

P2 – ‘Important but Not Urgent’:

  • Severity: P2 bugs are moderate issues. They don’t grind everything to a halt but are more than just cosmetic flaws.
  • Impact: These bugs can affect the user experience or certain non-critical functionalities.
  • Response: P2 bugs should be fixed in line with the regular development schedule, without causing significant disruption to ongoing work.

P3 – ‘Fix When Possible’:

  • Severity: These are minor bugs. Think of UI issues that don’t match the design specs perfectly or small glitches that don’t affect core functionality.
  • Impact: P3 bugs are more about polish and finesse. They might annoy some users but generally don’t impact the overall usability.
  • Response: These bugs can be scheduled for future sprints or when the team has bandwidth.

P4 – ‘Lowest Priority’:

  • Severity: The lowest on the bug hierarchy, P4 bugs are trivial issues like minor typos or alignment issues that don’t impact functionality.
  • Impact: These are the least impactful bugs. They’re so minor that many users might not even notice them.
  • Response: Address these as time allows, often bundled with other low-priority maintenance tasks.

Understanding the distinction between these categories is crucial for effective bug management. It helps in not only streamlining the development process but also in setting clear expectations with stakeholders about resolution timelines. 

Remember, not every bug requires a SWAT team response, but every bug does need the right level of attention.

The PM’s Hot Take

“Prioritizing bugs is like playing a never-ending game of Whac-A-Mole. Just when you think you’ve got everything under control, something new pops up. But here’s my controversial take: not every bug needs to be fixed. I know, it sounds like blasphemy in the perfection-seeking world of product development. But the truth is, obsessing over every tiny bug can lead us down a rabbit hole of inefficiency. It’s about finding the right balance between striving for a bug-free product and chasing an unattainable level of perfection. At Fibery, we’ve learned that sometimes it’s okay to let those P3 or P4 bugs sit for a bit, as long as we’re nailing the big ones. It’s not negligence; it’s strategic prioritization.”


As we wrap up this guide on bug prioritization, remember the key takeaways: Not all bugs are equal, and understanding their severity, impact on users, and alignment with business goals is crucial. 

Use the P0 to P4 classification system to navigate through the maze of bugs effectively. But, as we’ve learned, not every minor issue demands immediate attention. It’s about strategic prioritization, ensuring critical issues are tackled first, while balancing resources and timelines. 

Keep these principles in mind, and you’re well on your way to mastering the art of bug prioritization in product management.

Ready to put these insights into action? Sign up for Fibery today! 

We have a ton of resources and our platform is designed support your product management journey. Start with our free plan and experience firsthand how Fibery can streamline your workflow.

Join Fibery now and elevate your product management game to new heights! 

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