Description: Reliability refers to the ability of a system to consistently perform its intended function without failure. In the context of technology, this means that a system must operate continuously and predictably, minimizing downtime and errors. Reliability is a critical aspect in various areas, such as public key infrastructure, where the security and availability of services are essential. In network function virtualization, reliability ensures that virtualized applications and services run without interruptions. In embedded systems, reliability is vital for the proper functioning of devices that often operate in critical environments. In modern telecommunications networks, including 5G, reliability translates to stable, high-speed connections. In the Internet of Things, reliability ensures that connected devices communicate effectively and perform their tasks as expected. Edge computing requires reliability to process data in real-time. Additionally, as a service startup system, the reliability of processes is crucial for efficient operations. Finally, quality of service is directly related to reliability, as a reliable service is fundamental to meeting user expectations.