Space Link Extension - Service Management - CCSDS

DRAFT RECOMMENDED STANDARD FOR SPACE LINK EXTENSION SERVICE MANAGEMENT
ThreePhaseOperationProcedurePattern {invoker, performer, Invocation,
AcknowledgedReturn, SuccessfulReturn, FailedReturn*}
invoker
performer
ref
Send Message (Invocation, invoker, performer)
ref
Send Message (AcknowledgedReturn, performer, invoker)
alt
ref
[if operation is successful]
Send Message (SuccessfulReturn, performer, invoker)
[else]
ref
Send Message (FailedReturn*, performer, invoker)
FailedReturn* designates either a FailedReturn or FailedReturnWithDenial, as appropriate to the
specific operation.
Figure 3-21: Sequence Diagram for Three-Phase Operation Pattern
3.4.2.4 State Machines
Figures 3-22 and 3-23 are the state diagrams for the three-phase operation procedure pattern
from the points of view of the operation Invoker and Performer respectively. Tables 3-30
and 3-31 are the corresponding state tables.
CCSDS 910.11-R-2 Page 3-51 March 2008