Designers are used to working based on specs and under a tight set of restrictions. A good example is design work for the print industry. Artwork that is meant to be printed is created based on a set of well tried industry standards and project restrictions. Our designer knows these restrictions beforehand and while they are creating the artwork. They know, for example, how many inks they can use before the budget breaks, how small the copy can be before the press would mess it up and render it illegible, how thin knockout lines can be before they get blotted, etc. A design that fails to meet these restrictions is considered unacceptable.

A good exercise would be to define the “web user” for (or together with) the designers. A web user is usually thought as a super human that can do anything a human can do, but that is inaccurate. A web user has a very small attention span, for example. It does not read sequentially, but it skims through the page. It has a minimum eye resolution. It has learned to ignore certain areas of the page or certain elements depending on how they look, etc.