AIDA is termed to be very basic concepts of human nature that are catered and directed to while developing a content writing or copy writing piece. A here is termed to Attention, I to interest, D to desire and A again is known for Action.
And each individual termed used in AIDA is meant for each step in the copy writing process which takes a reader from various steps to the final buying of a product. As for A that is Attention it is the head line of an Ad copy, which immediately catches attention of prospective customer. In heading a customer can get answer to any of his immediate problems in form of solution to a problem, if form of used static, in a quote, in a question or in a mystery heading. Or a heading for attention can be made as from generating fear, guilt, flattery, exclusivity, greed and anger.
After grabbing attention it is the number of interest for a reader that you produce in introducing paragraph or in a first paragraph of an Ad copy. Next after Interest a good copy writer derives a desire in a reader for a product or service and finally lead him to the action where tempt a reader finally to buy a service. ThuS a good copy writer should always follow rules of AIDA (Attention, Interest, Desire and ACTION) to bring out excellent copy writing results.