@startuml class adapter

namespace DTRAM{
    class Observer
    class Logger
    class Weather{
        +timePasses():void
    }
    class Orcs{
        +update(type:String,int id):void
    }
    class Hobbits{
        +update(type:String,int id):void
    }

    Observer o---> Logger
    Observer o---> Weather
    Observer o---> Orcs
    Observer o---> Hobbits

    Weather o--> Orcs
    Weather o--> Hobbits

    Orcs o--> Logger
    Hobbits o--> Logger
}

namespace Iluwatar{
    class Weather{
        +timePasses():void
    }

    interface WeatherObserver<<interface>>{
        +update(type:WeatherType):void
    }
    class Hobbits
    class Orcs

    Weather o-down-> WeatherObserver
    Hobbits .up.|> WeatherObserver
    Orcs .up.|> WeatherObserver
}
@enduml