While this increases the scalability of the applications and separates the display and the database, it still doesn't allow for true specialization of layers, so most applications will outgrow this model.
虽然这增加了应用程序的可伸缩性，并将显示和数据库分开，但它仍然不允许真正的图层专业化，所以大多数应用程序将超过这个模型。