Quality Debt: Balancing the backlog
Your backlog's full of exciting new features that stakeholders are pushing hard for. Then operations mentions the platform needs upgrading or it will go out of support, the security officer reminds you of the medium vulnerability the penetration testing uncovered, and customer complaints about the workaround implemented last quarter are starting to stack up.
You know something needs to be done but how do you prioritise the fixes over the new, exciting features?
Quality Debt gives Product Owners the business language to talk about these invisible costs so that work can compete fairly for a place in the backlog.
What is Quality Debt?
Quality Debt is whatever robs your team of time to develop new features for the product or service. It's the term that helps Product Owners explain why "boring" work matters.
Technical Debt is a familiar concept, coined by Ward Cunningham in 1992 to describe code complexity that slows future development. Quality Debt builds on this idea but broadens it to include all the shortcuts, workarounds and deferred decisions that compound over time.
We categorise Quality Debt into three types that Product Owners need to understand and manage:
Platform Debt - when the underlying platform needs updating. For example, old versions of operating systems, languages, databases and web frameworks, outstanding security patches and outdated encryption protocols. This is foundational work keeps the system running securely and efficiently.
Technical Debt - mainly coding problems where refactoring would make future changes easier. Usually accumulates after adding features quickly under pressure. Sometimes it means rearchitecting parts of the solution, perhaps splitting functionality into separate services when other business areas want to use them.
Operational Debt - when you as Product Owner have made tough choices to get a release out the door. There's a workaround but it creates an ongoing cost that isn't sustainable in the medium or long term. For example, customers can create records but not delete them yet, or collaborators are using manual, time-consuming processes. We use the customer and collaborator language from our Community Onion here, since Quality Debt shows up differently depending on who's carrying the cost.
This definition aligns with our Brutal Prioritisation, where the Should card acknowledges that workarounds have a real business impact.
Even if you implement a perfect system, entropy ensures all three types of Quality Debt will accumulate over time. The question isn't whether you have Quality Debt. It's whether you're managing it deliberately.
Why We Love It
Using language like Quality Debt helps shift the conversation by:
Giving Product Owners business language to explain this work to stakeholders.
Making invisible work visible so it can compete with new features during prioritisation.
Framing quality as an investment in team productivity, not just "technical overhead”.
Helping to compare relative value instead of trying to pin down exact costs.
Breaking the "we'll fix it later" cycle by showing the value that's slipping away the longer it waits.
Preventing the multi-million dollar rebuild that happens when debt compounds for 3-10 years.
When We Use It
We reach for Quality Debt thinking when:
We're coaching Product Owners who struggle to get quality work prioritised.
Teams tell us velocity is dropping but can't explain why to leadership.
We're helping balance quality improvements against new development in roadmaps.
Production incidents are consuming sprint capacity and frustrating everyone.
We need to build a business case for paying down platform or technical debt.
We're working with organisations planning quarterly or annual work allocation.
It's especially powerful when we're helping Product Owners prevent small quality issues from compounding into a crisis that forces a costly rebuild.
How We Do It
We start by making Quality Debt visible, then help Product Owners size how much it's worth fixing.
Draw three columns - Platform Debt, Technical Debt, Operational Debt. We ask the team to brainstorm everything that's slowing them down. No solutions yet, just visibility. We look at our system monitoring and incident reports for trends. We investigate support ticket volumes. We document workarounds in our product and what time they are costing users. We put all of this into the mix for prioritisation.
Find the relative value - we look at what’s in the product backlog and use our Relative Sizing to size how much value paying down the debt would return, against the features competing for the same sprint. Our Value Buckets are a helpful way of understanding the Quality Debt often sits in the Reduce Cost buckets, and can be weighed directly against features sitting in the Revenue buckets.
Build the virtuous circle - pay down debt, increase quality, reduce incidents, and free up capacity for more valuable work. We coach Product Owners to allocate a sustainable percentage of each sprint or quarter to quality work rather than treating it as a special project.
Make it part of the rhythm - we encourage teams to build monitoring into their Definition of Done, and help Product Owners regularly ask: "How are we doing on Quality Debt? What work would pay that back? What's the cost of leaving it?"
That's it. Hard to see, easier to compare, and always worth the conversation."
Things to Look Out For
Debt is subjective - what one team sees as critical, another accepts as fine. The conversation matters more than perfect categorisation.
Balance is tricky - teams can swing from all features to all quality work and back again. We typically recommend 70-80% new value, 20-30% quality work as a sustainable rhythm.
Some debt is acceptable - a workaround is sometimes genuinely cheaper than building the feature. The goal is conscious management, not zero debt.
Value over precision - translating quality issues into exact dollars or hours is hard and rarely necessary. Sizing debt relative to features, using Relative Sizing or Value Buckets, gets a decision-ready answer faster.
Watch the rebuild cliff - we've repeatedly seen systems carrying heavy Quality Debt for over 3 years end up in the too-hard basket, which is when multi-million dollar rebuild projects start.
Monitoring isn't optional - you can't manage what you don't measure. Build monitoring into your product from the start, not bolted on later. Our DevOps Quick Assessment is a good starting point for a concrete measure of where your platform stands today.
Try It With Your Team
At your next sprint or quarterly planning session, run the three-column exercise from How We Do It, then ask: "Which of these is holding back the most value right now?" Prioritise the top three, drop them into your Value Buckets alongside your feature backlog, and commit to addressing at least one next sprint.
Our RAFT Series
✦ Our CoLab RAFTs - Rapid Agile Forecasting & Tracking skills - are practical tools we use every day in our coaching and training to help teams make work visible and performance-focused.
Curious? Let’s talk toni@agilecolab.com
Version 3, last updated on 30 September 2026
