After Sales Services as a cost centre for warranty obligations ?
After Sales Services as a cost centre for a value to the product ?
After Sales Services as a business centre ?

Product support ? System support ? Customer support ?
Service level agreements ? Non product related services?

Involvement in product development and manufacturing ?
Maintenance planning and service data management ?
Service capabilities?
    1 Call Entry and Remote Support ?
    2 Field operations ?
    3 Logistics ?

Customer claim management process?
Customer satisfaction survey?

Service revenue management ?
Service cost management ?
Quality management for service and product quality ?