This is inversion-of-control principle, popularized (but not coined) by Martin Fowler in an article of the same name. GP comment says it's not what defines a f

This is inversion-of-control principle, popularized (but not coined) by Martin Fowler in an article of the same name. GP comment says it's not what defines a framework, it just happens to be a succinct summary of most methods that frameworks use to enforce the their philosophy, which is in GP's view what defines a framework: it has opinions and philosophy about how you structure your code, and it wants you to follow them.