Reduction as a flowchart I'm trying to understand the reduction as a flowchart graph.

Let's say the boxes $A$ and $B$ are TMs/Functions and $x$ is the input.
Is this plot represent reduction from $A$ to $B$ ($A\le B$) or from $B$ to $A$ ($B\le A$)?
Or maybe it can be both of the way depending on the context?
The arrow is going from $A$ to $B$. It means you are solving problem $A$ using problem $B$. So, it is a reduction from $A$ to $B$