The goals:
The statement of work outlines the implementation process and put the features in words in terms of Zoho (or whatever other software you are using to build it out).
The flowchart is the visual complement of the statement of work, helping non-software experts to understand how you will build it and how the final product will work.
Again, if you like to simply look at examples and reverse-engineer the process instead of watching videos, check out our example documents here: