@startuml
hide footbox
title Lab Order Management (LAB-1/LAB-2)
participant OP as "OP (Order Manager)" #99FF99
participant OF as "OF (SUT)"
OP -> OF : OML (O21, O33, O35)
activate OF
OF --> OP : ORL (O22, O34, O36)
deactivate OF
@enduml