SCUR (Session Charging with Unit Reservation): SCUR is commonly used for data services with continuous usage. A session is established, and resources are reserved. The OCS periodically receives updates on usage, deducts units, and can trigger notifications based on pre-defined thresholds.
Analogy: Imagine using a prepaid data plan. You’re allocated a certain data quota, and the provider tracks your usage in real-time. You might receive alerts as you approach your limit.
Why It Matters: SCAR enables real-time monitoring and control of data sessions, facilitating fair usage policies and dynamic service adjustments.