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🌱 The Core Idea of DDD

Why do so many software projects fail?

It’s rarely just about the technology.

More often, it’s because the business and the code drift apart.


The Problem of Misalignment​

  • The business has one set of words.
  • Developers have another.
  • Documentation says something else again.

Everyone thinks they’re talking about the same thing… until it’s too late.

Features don’t match expectations.

Meetings feel clear but lead to confusion later.

The gap keeps widening.


A Simple but Powerful Shift​

Domain-Driven Design (DDD) begins with one core idea:

đź’ˇ Make the language of the business the foundation of the software model.

That means:

  • When the business says “Order,” the code should say “Order.”
  • When the business distinguishes between “Customer” and “Account,” the model should too.
  • When rules exist in the business, they’re reflected directly in the system.

This isn’t about diagrams or technology stacks.

It’s about aligning software and business so closely that they share one language.


Why It Matters​

When business and technology speak the same words with the same meaning:

  • Complexity becomes manageable.
  • Conversations become clearer.
  • The software reflects reality instead of drifting away from it.

This is the essence of DDD.

Not a tool.

Not a framework.

A way of thinking that keeps the business at the center of the system.


👉 Next, we’ll explore the building blocks that make this language concrete.