It depends on the problem. If you're doing something with the architecture already planned out for you or a simple script or change, that would be the case, but

It depends on the problem. If you're doing something with the architecture already planned out for you or a simple script or change, that would be the case, but if you're figuring out how a whole theoretical system should come together or what the best way would be to make a certain class of component interact with others as a whole, the planning stage often takes longer, although including rearchitecting in "refactoring" can move some of this into that stage, if that's how you see it.