43c90940_IT_Service_Management_strategy__What_it_means
[Service catalog] Service Category [Who provides it] ITSP Helps to exploit use of service assets in the most advantageous way, and drives possible service models to be considered. [What it means] 
This defines whether the service is part of a shared service, a core service or a specialty service.
ITIL chief architect: How to build an IT Service Management strategy
What it means