@startuml
autonumber
actor "Administrator" as ADMIN

activate ADMIN
ADMIN -> ":System" : starts specifying a new vaccine type
activate ":System"
":System" --> ADMIN : requests data (i.e, code, designation, whold)
deactivate ":System"

ADMIN -> ":System" : types requested data
activate ":System"
":System" --> ADMIN : shows the data and requests a confirmation
deactivate ":System"

ADMIN -> ":System" : confirms the data
activate ":System"
":System" --> ADMIN : informs operation success
deactivate ":System"



deactivate ADMIN

@enduml