+**Modular design** breaks a [system](/wiki/system) into smaller, independent parts called modules. Each module performs a distinct function and connects through well-defined [interface](/wiki/interface)s. This approach fosters flexibility, reusability, and easier maintenance across various fields.
+## See also
+- [Abstraction](/wiki/abstraction)
+- [Decomposition](/wiki/decomposition)
+- [Reusability](/wiki/reusability)