You mean to say SO, CFS, and RFS?
SO--> Service Order which supports different order actions to create/modify/delete a service instance (SI)
CFS --> Customer Facing Service. The service that is known the customer.
RFS--> Resource Facing service. A CFS will be decompose to different RFS(es) and each RFS contains the resources required in order to activate the service towards various network functions/elements.
Joseph
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Joseph Bautista
Hewlett Packard Enterprise
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