Space Link Extension - Service Management - CCSDS

CCSDS 910.11-R-2 Page 3-44 March 2008
TwoPhaseOperationProcedurePatternActivity {invoker, performer, Invocation,
AcknowledgedReturn, SuccessfulReturn, FailedReturn*, routineTwoPhaseTimeout, urgentTwoPhaseTimeout}
invoker
performer
routineTwoPhaseTimeout
urgentTwoPhaseTimeout
Create Invocation
Invocation
SLE-SM
message
SLE-SM
message
routineTwo
PhaseTimeout
urgentTwo
PhaseTimeout
Unrecognized
MessageSet
Response
Contact performer
by other means
to determine
operation status
start
disposition timer
Document Exchange Protocol
[disposition
timer expired
without having
received response
or return]
Invalid
Message
Response
performer may use the
diagnostic information
supplied in the exception
Responses to troubleshoot
inform invoker by
other means of
return contents
start
disposition
timer
Perform Service
Management Validation
terminate invoker
processing of
operation
[correlated with
known Invocation]
[uncorrelated with
known Invocation]
[correlated with
known return]
[uncorrelated with known return]
invoker may use the diagnostic
information supplied in the exception
responses to create an alternative
operation invocation or troubleshoot
[invalid
return]
[operation unable to complete
by expiration of disposition timer]
Perform Service
Management
Validation
[(Invocation not valid OR resources not available)
AND disposition timer not expired]
invoker updates data system to
reflect successful operation
[valid SuccessfulReturn]
[valid FailedReturn*]
invoker may use the diagnostic
Information supplied in the
failure return to create an
alternative operation invocation
Document Exchange Protocol
Unrecognized
MessageSet
Response
Failed
Return*
Generate
operation
FailedReturn*
[Invocation valid AND resources available AND disposition timer not expired]
Success
fulReturn
Generate operation
SuccessfulReturn
[disposition timer
not expired]
SLE-SM
message
SLE-SM
message
Perform Operation
FailedReturn* designates either a FailedReturn or FailedReturnWithDenial, as appropriate to the specific operation.
Figure 3-20: Two-Phase Operation Procedure Pattern Activity Diagram
DRAFT RECOMMENDED STANDARD FOR SPACE LINK EXTENSION SERVICE MANAGEMENT