Network slicing is a research concept and methodological approach in telecommunications and computer networking that investigates the creation and management of multiple, logically isolated virtual networks atop a shared physical infrastructure. It is characterized by the ability to dynamically provision, configure, and optimize network resources to meet diverse and specific service requirements, such as varying bandwidth, latency, reliability, and security demands. Its significance lies in enabling the flexible and efficient deployment of a wide range of applications and services, particularly in the context of 5G and future network architectures, by tailoring network capabilities to application needs rather than relying on a single, monolithic network structure.