Why is it a good idea to keep the scope of effect of a module within its scope of control?

Keeping the scope of effect of a module within its scope of control is essential for maintaining clarity and manageability. It ensures that the module can effectively handle its responsibilities without unintended consequences affecting other parts of the system. This encapsulation promotes modularity, making it easier to test, maintain, and evolve the module independently. Additionally, it reduces complexity and enhances the overall robustness of the system by minimizing interdependencies.