What Is Separation Of Concern (Soc)?


Separation Of Concern (SOC) is the separation of a functionality into distinct components. This means that the code is organized in such a way that a change in the behavior of one part does not lead to a domino effect where other parts are affected.

Use cases and Examples

An example of this is separating the code that deals with business logic from that which handles data storage.

Another example of this is creating a module that handles the input, and another that handles the output. The input module might use a touch sensor, but the output module might use a voice command as its input. This way, as new technologies come out, we can swap out one module for another without having to rewrite everything.


Separation of Concern as a whole helps improve software quality and maintainability. It prevents coupling between different business logics, thus improving reusability.

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