Operational Support Systems (OSS) are software applications used by telecommunications and service providers to manage their networks and services. They help in tasks such as network inventory, service provisioning, fault management, and performance monitoring. By streamlining these processes, OSS ensures that services are delivered efficiently and reliably to customers. OSS works alongside Business Support Systems (BSS), which handle customer-facing activities like billing and customer relationship management. Together, OSS and BSS form a comprehensive framework that supports the overall operation of service providers, ensuring that both technical and business needs are met effectively.