In SQL Server Master Data Services (MDS), the concepts of "Models" and "Entities" are fundamental to organizing and managing master data. A "Model" serves as a container or framework that defines the structure and rules for managing master data. Within a Model, there are "Entities," which represent specific types of master data, such as customers, products, or employees. Entities are used to store, manage, and maintain data related to those specific categories. In essence, Models and Entities in MDS provide a structured approach to data organization, ensuring data consistency, governance, and efficiency in master data management. In this video, I will provide you with a comprehensive, step-by-step guide on how to create models and entities in Master Data Services using SQL Server 2022.