diff --git a/FlippR-Driver/contrib/uml/output_umldiagramm b/FlippR-Driver/contrib/uml/output_umldiagramm
index 6f3f3e1..6d3e5a3 100644
--- a/FlippR-Driver/contrib/uml/output_umldiagramm
+++ b/FlippR-Driver/contrib/uml/output_umldiagramm
@@ -88,14 +88,22 @@ namespace flippR_driver::output {
 	abstract class IDisplay {
 		+IDisplay()
 		+~IDisplay()
-		+{abstract} getID() : int
-		-fit_string(std::string& score_string) : std::string
 		+{abstract} write_content(std::array<char, DigitCount> content) : void
 		+{abstract} write_score(int score) : void
 	}
 }
 
 
+namespace flippR_driver::output {
+	abstract class IDisplay {
+		+IDisplay()
+		+~IDisplay()
+		+{abstract} getID() : int
+		-fit_string(std::string& score_string) : std::string
+	}
+}
+
+
 namespace flippR_driver::output {
 	class IDisplayController {
 		+IDisplayController()
@@ -104,6 +112,12 @@ namespace flippR_driver::output {
 }
 
 
+class IEightDigitDisplay {
+	+write_content(std::array<char, 8> content) : void
+	+write_score(int score) : void
+}
+
+
 abstract class IEventHandler {
 	+~IEventHandler()
 	+{abstract} handle(flippR_driver::input::Event& event) : void
@@ -161,6 +175,12 @@ namespace flippR_driver::output {
 }
 
 
+class ISevenDigitDisplay {
+	+write_content(std::array<char, 7> content) : void
+	+write_score(int score) : void
+}
+
+
 namespace flippR_driver::output {
 	class ISolenoid {
 	}
@@ -197,7 +217,7 @@ namespace flippR_driver::utility {
 
 namespace flippR_driver::output {
 	class Lamp {
-		+Lamp(std::shared_ptr<utility::IOutputGPIOInterface> output_gpio_interface, int address, std::string name, bool activated)
+		+Lamp(std::shared_ptr<utility::IOutputGPIOInterface> output_gpio_interface, int i2c_address, int data_pin, std::string name, bool activated)
 		+~Lamp()
 		-activated : bool
 		+is_activated() : bool
@@ -242,9 +262,8 @@ namespace flippR_driver::utility {
 
 namespace flippR_driver::output {
 	class OutputItem {
-		+OutputItem(std::shared_ptr<utility::IOutputGPIOInterface> output_gpio_interface, int address, std::string name)
+		+OutputItem(std::shared_ptr<utility::IOutputGPIOInterface> output_gpio_interface, int i2c_address, int data_pin_address, std::string name)
 		+~OutputItem()
-		#address : int
 		#data_pin_address : int
 		#i2c_address : int
 		#output_gpio_interface : std::shared_ptr<utility::IOutputGPIOInterface>
@@ -255,12 +274,13 @@ namespace flippR_driver::output {
 
 namespace flippR_driver::output {
 	class Solenoid {
-		+Solenoid(std::shared_ptr<utility::IOutputGPIOInterface> output_gpio_interface, int address, std::string name, std::chrono::milliseconds deactivation_time)
+		+Solenoid(std::shared_ptr<utility::IOutputGPIOInterface> output_gpio_interface, int i2c_address, int data_pin, std::string name, std::chrono::milliseconds deactivation_time)
 		+~Solenoid()
 		-deactivation_time : std::chrono::milliseconds
 		-wait_thread : std::future<void>
 		-activate() : void
 		-deactivate() : void
+		-deactivate_after_wait() : void
 		+trigger() : void
 	}
 }
@@ -268,11 +288,8 @@ namespace flippR_driver::output {
 
 namespace flippR_driver::output {
 	class Sound {
-		+Sound(std::shared_ptr<utility::IOutputGPIOInterface> output_gpio_interface, int address, std::string name)
+		+Sound(std::shared_ptr<utility::IOutputGPIOInterface> output_gpio_interface, int i2c_address, int data_pin, std::string name)
 		+~Sound()
-		-address : int
-		-output_gpio_interface : std::shared_ptr<utility::IOutputGPIOInterface>
-		-name : std::string
 		+play() : void
 	}
 }
@@ -311,6 +328,11 @@ namespace flippR_driver::utility {
 }
 
 
+namespace flippR_driver::output {
+	ILamp <|-- Lamp
+}
+
+
 namespace flippR_driver::output {
 	IOutputDriver <|-- OutputDriver
 }
@@ -321,6 +343,11 @@ namespace flippR_driver::output {
 }
 
 
+namespace flippR_driver::output {
+	ISolenoid <|-- Solenoid
+}
+
+
 namespace flippR_driver::output {
 	ISound <|-- Sound
 }
@@ -336,13 +363,18 @@ namespace flippR_driver::output {
 }
 
 
+namespace flippR_driver::output {
+	OutputItem <|-- Sound
+}
+
+
 
 
 
 /' Aggregation relationships '/
 
 namespace flippR_driver::output {
-	DisplayController o-- IDisplay
+	DisplayController "2" o-- IDisplay
 }
 
 
@@ -355,7 +387,7 @@ namespace flippR_driver::input {
 
 
 namespace flippR_driver::output {
-	OutputDriver o-- IDisplay
+	OutputDriver "2" o-- IDisplay
 }
 
 
@@ -372,9 +404,6 @@ namespace flippR_driver::utility {
 flippR_driver::output.OutputItem o-- flippR_driver::utility.IOutputGPIOInterface
 
 
-flippR_driver::output.Sound o-- flippR_driver::utility.IOutputGPIOInterface
-
-
 
 
 @enduml
diff --git a/FlippR-Driver/src/output/IOutputDisplay.h b/FlippR-Driver/src/output/IOutputDisplay.h
new file mode 100644
index 0000000..bddd0b0
--- /dev/null
+++ b/FlippR-Driver/src/output/IOutputDisplay.h
@@ -0,0 +1,31 @@
+/*
+ * IOutputDisplay.h
+ *
+ *  Created on: Nov 20, 2018
+ *      Author: johannes
+ */
+
+#ifndef SRC_OUTPUT_IOUTPUTDISPLAY_H_
+#define SRC_OUTPUT_IOUTPUTDISPLAY_H_
+
+namespace flippR_driver
+{
+namespace output
+{
+
+class IDisplay
+{
+
+public:
+  IDisplay();
+  virtual ~IDisplay();
+
+  virtual void write_score(int score) = 0;
+  virtual void write_content(std::array<char, DigitCount> content) = 0;
+};
+
+}
+}
+
+
+#endif /* SRC_OUTPUT_IOUTPUTDISPLAY_H_ */