最終目標: 讓code base越來越好
- 符合各檢查項目,且能改善code base就可以進
- 避免code base越來越亂,越來越難maintain,越來越想打掉重來
+---------------------------------------+ | | | | | +-------------------+ | v | v | +---+ +---+ +---+ +---+ +---+ | a | --> | b | --> | c | --> | d | --> | e | +---+ +---+ +---+ +---+ +---+ | ^ +-----------------------------+