***OpenSlice Administrator**: Installs, configures and maintains an OpenSlice instance
***OpenSlice Service Designer**: Uses available resources to design service specifications that are offered to OpenSlice users
***OpenSlice User**: Browses and orders offered services
# Terms
* Resource Facing Service Specification (RFSSpec): A Service that exposes a resource Specification as a Service.
* Customer Facing Service Specification (CFSSpec): Service exposed to users for Service Orders. Usually it exposes other CFSSpec(Service Bundle) or other RFSSpecs
## Useful Terms
* OpenSlice management cluster
* Service Specification: Detailed descriptions of services, including attributes, configurations, performance metrics, and SLAs.
***Service Specification**: A blueprint with detailed descriptions of services, including attributes, configurations, performance metrics, and SLAs (e.g. 5G Connectivity).
* Service Catalog
***Service**: A running instance of a Service Specification.
* Service Categories
***Resource Specification**: A blueprint with detailed descriptions of resources, including attributes, configurations, and instantiation patterns (e.g. a Kubernetes CRD).
* Service Inventory
***Resource**: A running instance of a Resource Specification.
***Resource Facing Service Specification (RFSS)**: A Service Specification that exposes a Resource Specification as a Service (e.g. UPF Deployment in K8s).
***Customer Facing Service Specification (CFSS)**: A Service Specification exposed to Users, available for Service Orders. Usually an exposed CFSS (e.g. 5G Connectivity) is a Service Bundle and comprises of other RFSSs (e.g. UPF Deployment, Core Deployment) and CFSSs (e.g. Connect Radio Nodes).
***Resource Facing Service (RFS)**: An running instance of an RFSS, created via a Service Order of a related Service Bundle.
***Customer Facing Service (CFS)**: An running instance of an CFSS, created via a Service Order.
***Service Category**: A collection of CFSSs.
***Service Catalog**: A collection of exposed Service Categories.
***Service Inventory**: An inventory of all the service instances.
***Resource Inventory**: An inventory of all the resource instances.
