In the realm of automotive software development, AUTOSAR (Automotive Open System Architecture) has become a cornerstone framework for creating standardized, modular, and scalable software solutions. At the heart of AUTOSAR lies the Communication Stack, commonly referred to as the COM stack, which plays a vital role in enabling communication between different software components within an automotive system. In this blog, we will delve into the intricacies of the COM stack, exploring its architecture, components, functionalities, and significance in modern automotive software engineering.