What describes a Secondary Service?

A Secondary Service is best described as one that is only available if the primary service is being used. This indicates a dependency relationship between the secondary service and the primary service, meaning that the functionality or access to the secondary service is contingent upon the active use of the primary service.

For instance, in many service models, a secondary service may offer added features or support that enhances the experience of the primary service but is not independently accessible. This relationship ensures that clients must engage with the primary service in order to benefit from the secondary offering, typically enhancing the value or experience of the primary service.

Understanding this distinction is crucial because it highlights how services can be tiered or structured to provide additional options to users while ensuring they engage with the primary service for access.