Marketing plays a critical role in sales. The marketing department introduces products to the con-sumer, and creates strategic messaging that elevates appeal and ultimately drives sales. The feed-back and response from consumers is measured by the marketing team on a variety of levels. Ad-vertising is one means of seeing what performs and what does not perform. Marketers will note trends and demand in their specific markets. This plays into new product development, because the marketing team can work with product developers to create products based on that demand.
In development of specification, the role of marketing is largely the same. They provide the market insight so that right specification is developed and it matches the demands from customers.