This essay explores the fundamental concepts of marketing, analyzing McDonald's marketing strategies and the role of a marketing manager. It examines various marketing processes, including situational analysis, marketing mix strategy, and the strategic marketing process. The essay also includes a detailed marketing plan for a new product, the Protein Burger, outlining its aim, objectives, SWOT analysis, marketing mix, and budget. It emphasizes the importance of interrelationships between different functional departments within an organization.