For a marketing plan to be successful, the mix of Product, Price, Promotion, and Placement must reflect the wants and desires of the consumers in the target market. Trying to convince a market segment to buy something they don't want is extremely expensive and seldom successful. Marketers depend on marketing research, both formal and informal, to determine what consumers want and what they are willing to pay for. Marketers hope that this process will give them a sustainable competitive advantage. Marketing management is the practical application of this process.

Most companies today have a customer orientation (also called customer focus). This implies that the company focuses its activities and products on customer needs. Generally there are two ways of doing this: the customer-driven approach and the product innovation approach.

In the consumer-driven approach, consumer wants are the drivers of all strategic marketing decisions. No strategy is pursued until it passes the test of consumer research. Every aspect of a market offering, including the nature of the product itself, is driven by the needs of potential consumers. The starting point is always the consumer. The rationale for this approach is that there is no point spending R&D funds developing products that people will not buy. History attests to many products that were commercial failures in spite of being technological breakthroughs.

The next big thing is a concept in marketing that refers to a product or idea that will allow for a high amount of sales for that product and related products. Marketers believe that by finding or creating the next big thing they will spark a cultural revolution that results in this sales increase.

In a product innovation approach, the company pursues product innovation, then tries to develop a market for the product. Product innovation drives the process and marketing research is conducted primarily to ensure that a profitable market segment(s) exists for the innovation. The rationale is that customers may not know what options will be available to them in the future so we should not expect them to tell us what they will buy in the future. It is claimed that if Thomas Edison depended on marketing research he would have produced larger candles rather than inventing light bulbs. Many firms, such as research and development focused companies, successfully focus on product innovation. Many purists doubt whether this is really a form of marketing orientation at all, because of the ex post status of consumer research. Some even question whether it is marketing.

Diffusion of innovations research explores how and why people adopt new products, services and ideas.

A relatively new form of marketing uses the Internet and is called internet marketing or more generally e-marketing, affiliate marketing or online marketing. It typically tries to perfect the segmentation strategy used in traditional marketing. It targets its audience more precisely, and is sometimes called personalized marketing or one-to-one marketing.

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