Process
Areas
(staged)

Level 2  
 AM 
 ARD
 CM
 MA 
 PP
 PMC 
 PPQA 
 REQM 
 SSAD
Level 3 
 ATM
 AVAL
 AVER
 DAR
 IPM 
 OPD 
 
OPF 
 OT 
 RSKM
Level 4
 
OPP
 QPM
Level 5 
 
OPM 
 CAR

      5. Appendices
          5.4. Appendix D: Glossary
 service system 

An integrated and interdependent combination of component resources that satisfies service requirements. (See also “service system component” and “service requirements.”)
A service system encompasses everything required for service delivery, including work products, processes, facilities, tools, consumables, and human resources.
Note that a service system includes the people necessary to perform the service system’s processes. In contexts where end users perform some processes for service delivery to be accomplished, those end users are also part of the service system (at least for the duration of those interactions).
A complex service system may be divisible into multiple distinct delivery and support systems or subsystems. While these divisions and distinctions may be significant to the service provider organization, they may not be as meaningful to other stakeholders.



Process
Areas
(continuous)


Process
management   
 OPD
 OPF 
 OT  
 
OPP  
 OPM
Project
management  
 AM
 IPM
 
PP
 PMC 
 REQM
 
RSKM
 QPM
 SSAD
Acquisition Engineering 
 ARD

 ATM
 
 AVAL
 AVER

  
Support 
 CAR 
 
CM 
 DAR 
 MA
 
PPQA