A well planned project shouldn't have this problem since the UI should come before the code. The decisions for UI should be resolved before the code since it wi

A well planned project shouldn't have this problem since the UI should come before the code. The decisions for UI should be resolved before the code since it will dictate how the different functions will interact. Sometimes a good interface design will reveal that a there's no room for certain seemingly good features, thus eliminating a lot of potentially trivial work. Also, while designing the UI before the code won't necessarily affect the quality of the code, doing the code before the UI could substantially jeopardize the quality of the UI.