Answer:
 Functional independence in the context of software design is known as when a module having a low coupling and a high cohesive are said to be function independent from other modules. The term functional independence, is that a cohesive modules performs a single tasks and functions. It occurred when package address a specific range of functionality. It focused on single task and interact with other modules.
A good software designs are easily supports and maintain and minimize the time required for create and modify.
