@startuml

participant "Participant Replica 1"
participant "Participant Replica 2"
participant "ACM Runtime"
database "ACM Database"

"Participant Replica 1" -> "ACM Runtime": [ASYNC] Status message including outProperties update
"ACM Runtime" -> "ACM Database": Update Participant Replica \nas 'ON_LINE' and outProperties
"ACM Runtime" -> "Participant Replica 2": [ASYNC] Send sync message
"Participant Replica 2" -> "Participant Replica 2": Update memory from sync message
@enduml