Designing a Configuration System for an Application

You are tasked with designing a configuration system for a sophisticated software application. This system must be capable of constructing complex configuration objects that can have various representations and need to be instantiated once to maintain a consistent state across the application. The configuration objects might include details such as database connections $($db$\_1,$ db$\_2,$ etc$),$ API keys $($key$\_1,$key$\_2,$ etc$),$ environment$-$specific variables $($env$\_1,$ env$\_2,$ etc$),$ and more.

Deliverables:

$1.$ Explain what design pattern$($s$)$ would you use and why?

$2.$ Show a class diagram for your design pattern application.

$3.$ Include key attributes and function names related to the selected pattern on the class diagram.

$4.$ Write pseudo$-$code for the configuration system classes and interfaces

$5.$ Write a Client class that shows how it interfaces with pattern class$($es$).$