IT Service Design （SD）provides good－practice guidance on the design of IT services，processes，and other  aspects of service management effort .（）does not belong to the main activities of service design process.
A、Service catalogue design
B、Release and deployment management
C、Service cost assessment
D、Service level design

Change management would typically be composed of the raising and recording of changes, assessing the impact, cost, benefit and risk of proposed changes,developing business justification and obtaining approval, managing and coording change implementation, monitoring and reporting on implementation, reviewing and closing （）.
A、change reason
B、change model
C、remediation plan
D、change requests

A service level agreement is an agreement between two or more parties, where one is the customer and the others are ().
A、service brokers
B、service providers
C、service auditors
D、key customers