This is the quickest way to see if the client and the executor understand each other
At the warframe stage, it is often found that something was not considered in the brief or the structure. The brief may say that a site with a personal account and a complex structure is needed, when in fact it may turn out that a targeted landing page will do the product task better, bringing more revenue to the customer.
The view can be formed from the experience of others, from the desire to do "as best", but vaframes help to visualize the thoughts, desires and ideas, gathering them into a single picture. Skipping the vaframes stage it often turns out that the design fully meets the brief, but does not fulfill the task at all and simply does not like the customer.