PlantUML Web Server

@startuml
skinparam linetype ortho
left to right direction
Actor Customer as customer
Actor EBook as ebook
Actor Publisher as publisher
rectangle "Book Catalogue" {
    together {
        Actor "Book Database" as bookLog
        (Retrieve Information) as getBook
        customer -- getBook
        getBook -- ebook
        getBook -- bookLog

(Update Catalogue) as updateCatalogue
        ebook -- updateCatalogue
        updateCatalogue -- bookLog
    }

together {
        (Place Order) as order
        customer -- order
        order -- ebook
        order--publisher

(Cancel Order) as cancelOrder
        customer -- cancelOrder
        cancelOrder -- ebook
        cancelOrder--publisher
    }
}

(Ship To EBook) as shipEBook
shipEBook -- publisher
(Ship To Customer) as shipCustomer
customer -- shipCustomer
ebook -- shipEBook
shipCustomer -- ebook

(Return to EBook) as returnCustomer
(Returnto Publisher) as returnPublisher
customer -- returnCustomer
returnCustomer -- ebook
ebook -- returnPublisher
returnPublisher -- publisher
@enduml

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