This kind of work is closely related to development kickoff, but in reality only the front-end development team needs to be involved at this stage. I think this is a good step to take before you start building your site. This is because you can lay out the printed matter and get a clearer picture of the whole picture. You can't easily do this using applications such as Sketch, Photoshop, and Invision. You have to zoom out so far to see all the designs. Alternatively, you may only be able to view one page template per browser window.