Marketing is the study and management of exchange relationships. The American Marketing Association has defined marketing as "the activity, set of institutions, and processes for creating, communicating, delivering, and exchanging offerings that have value for customers, clients, partners, and society at large."
Marketing is used to create the customer, to keep the customer and to satisfy the customer. With the customer as the focus of its activities, it can be concluded that Marketing is one of the premier components of Business Management - the other being Innovation. Other services and management activities such as Operations (or Production), Human Resources, Accounting, Law and Legal aspects can be "bought in" or "contracted out".
Marketing is defined by the American Marketing Association as "the activity, set of institutions, and processes for creating, communicating, delivering, and exchanging offerings that have value for customers, clients, partners, and society at large." The term developed from the original meaning which referred literally to going to a market to buy or sell goods or services. Seen from a systems point of view, sales process engineering views marketing as "a set of processes that are interconnected and interdependent with other functions, whose methods can be improved using a variety of relatively new approaches."
The Chartered Institute of Marketing defines marketing as "the management process responsible for identifying, anticipating and satisfying customer requirements profitably." A similar concept is the value-based marketing which states the role of marketing to contribute to increasing shareholder value. In this context, marketing can be defined as "the management process that seeks to maximise returns to shareholders by developing relationships with valued customers and creating a competitive advantage."
Marketing practice tended to be seen as a creative industry in the past, which included advertising, distribution and selling. However, because the academic study of marketing makes extensive use of social sciences, psychology, sociology, mathematics, economics, anthropology and neuroscience, the profession is now widely recognized as a science, allowing numerous universities to offer Master-of-Science (MSc) programmes. The overall process starts with marketing research and goes through market segmentation, business planning and execution, ending with pre and post-sales promotional activities. It is also related to many of the creative arts. The marketing literature is also adept at re-inventing itself and its vocabulary according to the times and the culture.Source : Wikipedia