Here are the three layers. In the conventional model explicit control flow is downward, from each layer to a lower layer.

The Presentation layer is at the top (where the user originates events) and the Domain Layer is at the bottom.

The modification:

1.     Rotate the model ninety degrees clockwise.

2.     The explicit flow is not control but data, in the left-to-right direction. toward the presentation layer, and control flows are implied and invisible.