@startuml

participant ACM_Runtime
participant Participant
database ACM_Database

ACM_Runtime <- Participant: [ASYNC] Lock Automation Composition Element Instance Response
ACM_Runtime -> ACM_Database: Store Automation Composition Element Instance Response Information

alt Is AC Element Instance Locked?
 ACM_Runtime -> ACM_Database: Set AC Element Instance administrative state as LOCKED
 alt Have all the other AC Element Instances in this AC Instance been LOCKED?
  ACM_Runtime -> ACM_Runtime: Set AC Instance administrative state as LOCKED
  end
end

@enduml