Can you explain the role of the I principle in the SOLID set and why it is important in software development?

The Interface Segregation Principle (Principle of Interface Segregation) from the SOLID set states that clients should not depend on interfaces they do not use.

This is important because:

• It allows creating more specialized and understandable interfaces.
• It reduces coupling between components.
• It makes maintenance and extension of the code easier, as changes in one interface do not affect clients that do not use it.

For example, instead of one large interface with many methods, it is better to create several small ones so that a class implements only the methods it really needs.