Assembly module vs Manufacturing module

Assembly module make use of Assembly Order to combine multiple items to make another item. It defines what items to be make. Manufacturing module make use of Production Order to combine multiple items to make another item. In this case, it is defining what item to be make just as Assembly Order. Besides defining what to be make, Manufacturing module can also define the process to make the item via Routing. With this, Manufacturing module can answer the question what to be make and how to make it.