
It is the most common pathway have to be adopted by every rational person. Speaking of rationality, because many emotional consumers don't bother to make rational decisions and they intend to do impulse purchasing or with the concept of Brand love.
Awareness: Common person can get aware of the product through advertisement, promotion, social media or even sometimes WOM.
Interest: Then, person would seek the relevancy about the product. Whether, that product is attractive enough to make a pay on that.
Desire: In the desire stage, person would personally feel the need of that particular product. It may overlook the interest factor by then and make his mood to buy only for his desire or need.
Action: In the last, he would make a purchase and another evaluation would be started known as post purchase. Whether to keep it or trash it. It solely depends upon the performance or experience of that particular product.