@startuml
hide footbox
title Transactions supported by the Order Placer part of the tool
participant OF as "OF (SUT)"
participant OP as "OP (Order Manager)" #99FF99
group Order Management (LAB-1 & LAB-2)
OF -> OP : OML (O21, O33, O35)
activate OP
OP --> OF : ORL (O22, O34, O36)
deactivate OP
OP -> OF : OML (O21, O33, O35)
activate OF
OF --> OP : ORL (O22, O34, O36)
deactivate OF
end
@enduml