Description: Entity Gateway is a design pattern that provides an interface for accessing a data source. This pattern acts as an intermediary between the application and the database, facilitating interaction with data without exposing the complexity of the underlying source. By encapsulating data access logic, the Entity Gateway allows developers to perform create, read, update, and delete (CRUD) operations more easily and in an organized manner. Additionally, it promotes separation of concerns, meaning that business logic can remain independent of data access logic. This not only improves code maintainability but also facilitates implementing changes in the data source without affecting other parts of the application. In an environment where applications need to interact with multiple data sources, such as databases, web services, or file systems, the use of an Entity Gateway becomes especially relevant. This pattern can also include additional features, such as connection management and cache implementation, further optimizing application performance. In summary, the Entity Gateway is a powerful tool in the design pattern arsenal that helps simplify and structure data access in modern applications.