Service Pooling in OSB refers to the management of multiple endpoint URLs for a single business service. When a business service has multiple backend endpoints, OSB can automatically manage them as a 'pool' - handling load distribution, health checking, and failover if one endpoint becomes unavailable. This is distinct from Service Aggregation (combining multiple services), Service Orchestration (coordinating service calls), or Throttling (rate limiting). The failover and endpoint management logic described in the question is specifically what Service Pooling provides.