When not to use the Mediator Design Pattern

• Simple Interactions: The interactions between components are straightforward, and introducing a mediator would add unnecessary complexity.
• Single Responsibility Principle (SRP): Each component has a single responsibility, and introducing a mediator might violate the Single Responsibility Principle, leading to less maintainable code.
• Performance Concerns: Introducing a mediator could introduce a performance overhead, especially in situations where direct communication between components is more efficient.
• Small Scale Applications: In small-scale applications with a limited number of components, the overhead of implementing a mediator might outweigh its benefits.
• Over-Engineering: Avoid using the Mediator pattern if it seems like an over-engineered solution for the specific requirements of your system. Always consider the trade-offs and the specific needs of your application.

The Mediator design pattern is a behavioral pattern that defines an object, the mediator, to centralize communication between various components or objects in a system. This promotes loose coupling by preventing direct interactions between components, instead of having them communicate through the mediator, facilitating better maintainability and flexibility in the system architecture.