Use-Case Diagram of arsnova.cards

```plantuml @startuml skinparam packageStyle rectangle skinparam rectangle { BackgroundColor Lime } actor Guest actor Student actor ProofReader actor Lecturer left to right direction Guest <|- Student Student <|- ProofReader ProofReader <|- Lecturer rectangle ArsnovaCards { Guest - (view released card index or revision course) usecase (create card index) as ci usecase (create card) as cc Student - ci ci ..> cc : << include >> ci ..> (view own index/card) : << include >> usecase (select card type) cc ..> (select card type) : << include >> note left of (select card type) - learning unit - command set - formula collection - design patterns - exam question - quotations - subject bibliography - vocabulary end note usecase (create transcript) as ct usecase (evaluate and give bonus) as eb ct <. eb : << extend >> ProofReader -- eb Student -- (create revison course) Student -- ct Lecturer - (create bonus option) } @enduml ```