@startuml
skinparam monochrome true
skinparam packageStyle rectangle
skinparam shadowing false

title System Sequence Diagram (SSD)

autonumber

actor "Organization\nEmployee" as Employee
participant ":System" as System

activate Employee

    Employee -> System : asks to register a vehicle
    activate System
        System -> System : checks if employee is an FM
        System --> Employee : requests data (Brand, Model, Type, Tare\n,Gross Weight, Current Km, Register Date,\n Acquisition Date, Maintenance/Checkup Frequency
    deactivate System

    Employee -> System : types requested data
    activate System

        System -> System : registers vehicles with all the data provided
        System --> Employee : shows all data and requests confirmation
    deactivate System

    Employee -> System : confirms data
    activate System

        System --> Employee : displays operation success
    deactivate System

@enduml