@startuml
skinparam monochrome true
skinparam packageStyle rectangle
skinparam shadowing false

title System Sequence Diagram (SSD)

autonumber

actor "HRM" as Employee
participant ":System" as System

activate Employee

    Employee -> System : asks to  register a job
    activate System

        System --> Employee : requests data (job's name)
    deactivate System

    Employee -> System : types job's name and confirms
    activate System

        System --> Employee : displays operation success
    deactivate System



@enduml