В своей книге Clean Architecture, Robert C. Martin сожалеет, что выбрал такое название (SRP):

📝 "Of all the SOLID principles, the Single Responsibility Principle (SRP) might be the least well understood. That’s likely because it has a particularly inappropriate name.
It is too easy for programmers to hear the name and then assume that it means that every module should do just one thing.

Make no mistake, there is a principle like that. A function should do one, and only one, thing. We use that principle when we are refactoring large functions into smaller functions; we use it at the lowest levels. But it is not one of the SOLID principles—it is not the SRP.

Historically, the SRP has been described this way:

A module should have one, and only one, reason to change.

Software systems are changed to satisfy users and stakeholders; those users and stakeholders are the “reason to change” that the principle is talking about. Indeed, we can rephrase the principle to say this:

A module should be responsible to…