AIDA - New?

Not as a concept for SEO.

Step one

What is your page about = Title

Detail about what your page is about = META description

Get the above 2 correct and the search engines display them in the serps.

Step two - visible content to reader

What is your page about = H1

Summary about what your page is about = text that follows H1

Seconday subject on page that explains main subject = H2

etc

As far as I am aware, this is the formula on which all search engines are based with the first 1024 indexible characters on the page having the most weight. Variations in how the algorithm is applied gives varying results across the different search engines.
However, giving high importance to these factors when desgining your page will give you at top #10 across most with some at #1 if you are any good at keeping your page on topic.

After all, what do you like to read when you first pick up a book - the blurb on the back page or the index page that gives you all the information about everything - no focus.

Common sense goes a long way when trying to decide if a page will do OK in the serps.