Understanding PLS Regression in a diagram

This is a first part of the diagram of how some of the inside parts of the algorithms works. the diagram still needs to grow with new steps adding new terms (this is just for the first term), and with the matrices "F" and "q".

 

The idea is to link all these diagrams to the Win ISI diagram.

 

Everything start with my previous posts:

How the Weights are calculated in PLS?
How the scores are calculated in PLS ?
How the loadings are calculated in PLS?