Why is it important to design components so that their implementation is not explicitly tied to the rest of the system?

Designing components with minimal coupling allows:

• Simplifying support and development of the system — changes in one component do not require modifications in others.
• Increasing code reusability.
• Facilitating testing, as components can be tested in isolation.
• Improving scalability and flexibility of the architecture.

This is achieved through principles of modularity and encapsulation.