Scenario $9$: Structuring Methods $($Monolithic$,$ Layered, Modular, Micro$-$Kernel Models$)$

Question:

A tech startup is evaluating different operating system architectures for their new IoT device.

$1.$ Compare the monolithic, layered, modular, and micro$-$kernel models in terms of their structure, performance, and maintainability.

$2.$ Recommend the most suitable architecture for the IoT device and justify your choice.

$3.$ Discuss the potential challenges in implementing the chosen architecture and propose solutions to address them.