Software Design on cloudmato.com

Why SOLID Principles Matter & Why Developers Skip Them

cloudmato.com — Sun, 07 Jun 2026 15:51:49 +0530

Everyone talks about SOLID principles. Your senior dev mentions them in code review. Your architecture docs reference them. But why do actual projects become unmaintainable garbage despite teams “knowing” SOLID? The answer: understanding SOLID and actually building with it are two completely different things [1].

Most developers learn about SOLID early, nod along, then immediately violate these principles the moment a deadline hits. Let me show you where the rubber meets the road — and why it’s harder than it sounds.

Why Use Functional Programming When OOP Exists?

cloudmato.com — Thu, 04 Jun 2026 16:32:06 +0530

OOP is 50+ years old. Classes, objects, inheritance — it works, everyone knows it, almost every popular language supports it. So why are people talking about functional programming like it’s some revelation? Because OOP is great at modelling things. FP is great at modelling transformations. Most real software has both, and conflating the two is where the confusion starts.

What Is Functional Programming, Actually?

Not “functions inside a class.” That’s just OOP with functions.

OOP Mistakes Programmers Keep Making

cloudmato.com — Tue, 02 Jun 2026 18:48:23 +0530

OOP has been around for fifty years. Everyone in software has taken a course on it. Most have read about SOLID, inheritance, encapsulation, polymorphism. And yet — I keep seeing the same design mistakes in codebase after codebase, from startups to enterprise projects.

Knowing the theory is not the same as writing good OOP. Here’s where it actually goes wrong.

The God Object

Start a project, create a UserService class. Someone adds payment logic to it. Then notification handling. Then authentication checks. Six months later: a 2000-line file that does everything, depends on everything, and breaks every time anyone touches it.