Nucleus/Core.md

-The `Core` struct holds the instances of all attached southbound interfaces as well as the controller's principal network domains. 
+The `Core` struct represents the core of the controller. The `Core` itself holds [Principal Network Domains](https://code.fbi.h-da.de/cocsn/gosdn/-/wikis/Nucleus/Principal-Network-Domain) and [Southbound Interfaces](https://code.fbi.h-da.de/cocsn/gosdn/-/wikis/Nucleus/Southbound-Interface) in a respective [store](https://code.fbi.h-da.de/cocsn/gosdn/-/wikis/Nucleus/Storable).
 
 ```plantuml
-    class Core << (S,Aquamarine) >> {
-        - domains <font color=blue>map</font>[string]interfaces.PrincipalNetworkDomain
-        - sbis <font color=blue>map</font>[string]interfaces.SouthboundInterface
+        class Core << (S,Aquamarine) >> {
         - database database.Database
-        - config controllerConfig
-
-        + IsRunning <font color=blue>chan</font> bool
-
-        - readControllerConfig(configFileController string) error
-        - readClientConfig(configFileClient string) error
-
-        + Init(socket string, configFileController string, configFileClient string, IsRunningChannel <font color=blue>chan</font> bool) 
-        + AttachDatabase() 
-        + Shutdown() 
+        - pndc pndStore
+        - sbic sbiStore
+        - httpServer *http.Server
+        - stopChan <font color=blue>chan</font> os.Signal
 
     }
 ```
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