模型层应该与数据源交互.如果客户端-服务器设置有两个独立的三元组，则客户端模型层的数据源将是服务器的表示层.

The model layer should be interacting with data source. In case of client-server setup where you have two separate and independent triads, the data source for client's model layer would be server's presentation layer.

基本上，您客户端的模型层变成了 服务器端用户.

Basically, your client-side's model layer becomes the user of server-side.