@startuml
skinparam monochrome true
skinparam packageStyle rectangle
skinparam shadowing false

title System Sequence Diagram (SSD) - Task Assigning

autonumber

actor "Human Resources\n Manager" as HRM
participant "System" as System

activate HRM

    HRM -> System : requests to assign task
    activate System

        System --> HRM : requests task details
    deactivate System

    HRM -> System : provides task details
    activate System

        System --> HRM : confirms task details
    deactivate System

    HRM -> System : selects collaborator(s)
    activate System

        System --> HRM : displays available collaborators
    deactivate System

    HRM -> System : confirms collaborator selection
    activate System

        System --> HRM : confirms selection
    deactivate System

    HRM -> System : confirms task assignment
    activate System

        System --> HRM : displays operation success
    deactivate System

@enduml
