5 Ways to Prioritise Your Product Backlog
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5 Ways to Prioritise Your Product Backlog
@alex-omeyerAlex Omeyer
Co-founder & CEO at stepsize.com, SaaS to measure & manage technical debt
Every person in your company probably has a different opinion about what's the company's biggest priority. But which project should be prioritised? Fortunately, there are great methods to help you prioritise your product backlog.
This article will cover the following topics:
- Product Manager: More mad skills than a cat herder
- What is the Product Backlog?
- What are the Product Backlog tasks?
- The importance of prioritising your backlog
- 5 things no one mentions about prioritising the product backlog
- Method 1: Impact effort matrix
- Method 2: Stack Ranking
- Method 3: The MoSCoW method
- Method 4: Weighted Shortest Job FirstMethod 5: Data-driven prioritisation
Product Manager: More mad skills than a cat herder
Enter the product manager as the unsung hero as the person who has to herd cats and bring everyone and every task together to ensure that deadlines are met, tasks are ticked off, code deployed, and products released.
It's not just about keeping everyone focused and to deadline, but being agile enough to strengthen tasks and targets, and the demands of managers and users change. Any good product manager should be intimately acquainted with their product backlog, but how do they decide what to focus on and when?
This article takes a look at the different methods for product backlog prioritisation. It's not selling a particular framework, workshop, or ideology. Instead, it provides an opportunity to look at the different ways people interpret and prioritise the product backlog.
What is the product backlog?
A product backlist is a list of tasks required to meet the strategic plans of the product road map. The backlog is about turning that sky-high thinking into actionable tasks, including how-to and by whom. While the product roadmap is big-picture, presenting high-level goals and strategies intended for a CXO audience, a product backlog is the nuts and bolts to-do list, writing (arguably) for those who carry out the bulk of the work - product and development teams.
What are the product backlog tasks?
Product backlog tasks differ depending on the team. Those using a scrum ideology may refer to 'a user story'. This puts each specific product backlog task into the perspective of the end-user. For example:
"As a (user type) I want to (what they want to accomplish) so that I can (the result they want to achieve)."
However you frame them, these typical tasks or stories can include:
- Bug fixes
- Infrastructure and feature updates
- Developing new features Infrastructure updates
- Changes to existing functionalities
- Bug fixes
- Reducing technical debt
- Refactoring
5 things no one mentions about prioritising the product backlog
As mentioned, there are plenty of people who have made money out of organising developers and will want to sell you their "fail-proof" method. Still, there are also plenty of resources bolted onto services you already use. But first, I'd like to make a few points. Whatever methods you choose, five things are necessary to make it work:
- The company has a reasonable level of functionality. High staff turnover or absenteeism makes it hard to get tasks completed. I once worked in a company where my department had five different managers in five months. Every time a new one started, the tasks and priorities changed.
- The product manager is respected and in a position of authority. This means when they set deadlines or allocate tasks, they are treated as if they were set by the CTO and CEO (or if you're a freelancer, the person who processes your invoices.)
- The CXO/Senior management are hands-off enough to allocate responsibility to the product manager and good communicators - if something needs to change, they are able to articulate the reasons instead of simply pulling rank.
- Team members are appropriately skilled to complete the tasks (or the company is receptive to hiring higher-skilled freelancers).
- There is a process for managing technical debt - especially if it is slowing down teams, causing bugs, and delaying feature releases. If technical debt is not a priority, it will be harder to reduce the product backlog or complete tasks.
Techniques to prioritise the product backlog
1. Impact effort matrix
The impact effort matrix plots tasks on a matrix with two axes: level of effort and level of impact. I've seen it done in meetings using a whiteboard and post-it notes. There are also templates in edraw, miro, and sketchbubble. It's a good exercise involving team members from different departments as you get an opportunity to pit the different priorities against each other.
Not convinced? Itamar Gilad shares a well-critiqued analysis of the Impact/Effort matrix that is definitely worth a read.
2. Stack Ranking
One of the commonly used methods is stacked ranking—the act of taking your list of items that need prioritisation and ranking them from the most important (top of the stack) to the least important (bottom of the stack).
Advantages? There can only be one number one. This method guarantees you’re always delivering the highest value you can, and your team is never working on low-value features. Plus, it's easy to use.
Disadvantages? The priorities will most likely be determined using your intuition backed up with some analytics.
3. The MoSCoW method
The MoSCoW method is an alternative to prioritising things in terms of High/Medium/Low
The categories are:
- Must have: these tasks arecritical to the current delivery timebox in order for it to be a success. If even one 'Must have' requirement is not completed, the project delivery should be considered a failure.
- Should have: Important but not crucial for delivery.
- Could have: these tasks are desirable but not necessary and are to be prioritised only if other things are completed.
- Won't have: these tasks are the least-critical.
Great chart by KECG
The problem with the MoSCoW method is that it doesn't help you choose if you, for example, have three tasks in the 'Must have'. Further, it's easy to see new builds prioritised over refactoring if refactoring is always delegated to the 'could have' or 'won't have' categories.
4. Weighted Shortest Job First
The weighted-shortest-job-first' (WSJF) principle is used in agile software development to prioritise jobs based on the economics of Lean product development. This is achieved by dividing the Cost of Delay by the time taken to complete the tasks. For example, if I prospective featured would be worth $150k per month, a delay of three months would mean a Cost of Delay of $450K.
There are many different mathematical ways to frame this, but another way is thinking about what a company will lose if something is not attended to or completed. The task that if not done results in the most significant loss - this could mean financial and reputational, loss of subscribers, an inability to upsell a related product or bottleneck such as a task delaying multiple releases. There'll always be a level of subjectiveness, of course, but perhaps less than trying to determine what task is the most important to whom.
5. Prioritise based on context
One of the best tools that helps you understand user behavior, including user flows and user pain points is data. Using a product such as Stepsize can also help to quantify the financial impact of technical debt. Stepsize is a free platform that allows users to add context to their code, like hours lost, quality issues, and customer impact.
Ok, we've prioritised our backlog. Now what?
Think about the platforms you already use for communications and managing tasks and projects. This is especially important with remote teams, particularly those in different time zones, meaning work happens asynchronously. Don't add to your team's cognitive load by making them use yet another workflow platform. Instead, integrate your backlog into the tools your team already uses, such as Jira, Trello, Monday.com, or Asana and get extra support from tech debt prioritisation from Stepsize.
Previously published at https://www.stepsize.com/blog/how-to-prioritise-your-product-backlog
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