What consequences arise when introducing layers with clearly defined responsibilities in system architecture?

Introducing layers with clearly defined responsibilities in the system architecture leads to the following consequences:

• Improved modularity and code readability. Each layer is responsible for its own area, making understanding and maintenance easier.

• Easier testing. Isolated layers can be tested separately, increasing quality and reliability.

• Increased flexibility and extensibility. Changes in one layer minimally affect others, simplifying the addition of new features.

• Simplified teamwork. Different teams can work on different layers in parallel.

• Possible increase in interaction complexity. Due to the separation into layers, additional communication and coordination may be required.

• Potential decrease in performance. Data transfer between layers and additional abstraction may cause slight slowdowns.

Thus, layered architecture promotes project structuring and quality improvement but requires thoughtful design to minimize overhead.