ehh, mediocre ideas, tricks, dogmas, religious approaches. You have to evaluate decisions by the case, with the context. It is called software *engineering* -

ehh, mediocre ideas, tricks, dogmas, religious approaches. You have to evaluate decisions by the case, with the context. It is called software *engineering* - you have some goals and constrains and you design with those in mind. Sometimes it is better to duplicate, sometimes to it is better to have single source of truth.