The top bug predictor is not technical, it's organizational complexity
This is a no-brainer.<p>As a development manager for a quarter-century, and an active software developer for a lot longer than that, I can definitely say that every place there&#x27;s a &quot;meeting of the minds&quot; is a place for bugs.<p>In the software itself, the more complex the design, the more of these &quot;trouble nodes&quot; (what I call them) there are. Each interface, each class, each data interface, is a bug farm.<p>That&#x27;s why I&#x27;m a skeptic of a number of modern development practices that deliberately increase the complexity of software. I won&#x27;t name them, because I will then get a bunch of pithy responses.<p>These practices are often a response to the need to do Big Stuff.<p>In order to do Big Stuff, you need a Big Team.<p>In order to work with a Big Team, you need a Big Plan.<p>That Big Plan needs to have delegation to all the team members; usually by giving each one a specific domain, and specifying how they will interact with each other in a Big Integration Plan.<p>Problem is, you need this &quot;Big&quot; stuff. It&#x27;s crazy to do without it.<p>The way that I have found works for me, is to have an aggregate of much more sequestered small parts, each treated as a separate full product. It&#x27;s a lot more work, and takes a lot more time, with a lot more overhead, but it results in a really high-quality product, and also has a great deal of resiliency and flexibility.<p>There is no magic bullet.<p>Software development is hard.