redroot
Joined 9 years ago
Joined 9 years ago
Exactly right, for the most part if the business has enough trust in engineering to do the best they can, the technical strategy to realise business value is up to engineering, including 'debt'.
The most effective strategy I've seen so far is my current employer. We split our time across the quarter. 60% to core product focuses for the quarter, 20% to ad-hoc requests from the business, and 20% to 'tech improvement'. The latter includes personal growth for new engineers related to our stack or exploring new tech, improving our current tooling, and addressing areas of 'tech debt'. This split is agreed with the business, and the tech lead in a team is responsible for maintaining the balance and has autonomy here too - often we see areas of debt that impact our product focuses so that becomes core for example. It takes trust on all sides but seems to be working well.
Two alternative explanations I've begin to use over the last few years that have helped:
1) Inertia / Inert Areas - the reason this 'debt' is a problem is it means future changes are hard to execute cleanly, and previously. An area becomes inert to change unless an intervention is made. For non-technical stakeholders they most important thing is often that we can keep making changes, so this sets all sorts of loss aversion alarm bells ringing in a way the term 'debt' doesn't - this is where you can start talking about risk, which crosses the divide between engineering and other functions quite well.
2) Product Debt - Yes in some cases code is just badly written, which is an engineering concern, but often the reason changes in Year 5 are hard to make because the domain / reality has moved on, and the assumptions baked into the code written in Year 2, no matter how clean the code, are now just wrong. For example, baked-in assumptions of how business works in Market A as you are expanding into Market's B and C. This isn't the fault of engineering, just the reality of a product that continues to persist - core changes are inevitable. Product leaders therefore need to also get strategic about when it makes sense to rethink previous decisions driven by product needs, and work with engineering leaders to mitigate otherwise you might end up in an inert ball of mud unable to hit goals.
In the most idealised vision of a piece of software, changes will get harder to make in a linear fashion if previous decision are not revisited will new information. In worst case it's more like an exponential graph, so intervention steps will always have to be taken.
As you say, once you're talking the same language, then you get into the details about what strategies to address this inertia / current conditions.