diff --git a/doc/Classdiagramm/layer-diagram.png b/doc/Classdiagramm/layer-diagram.png
new file mode 100644
index 0000000..6e6fdfe
Binary files /dev/null and b/doc/Classdiagramm/layer-diagram.png differ
diff --git a/doc/Classdiagramm/layer-diagram.uxf b/doc/Classdiagramm/layer-diagram.uxf
new file mode 100644
index 0000000..6330af5
--- /dev/null
+++ b/doc/Classdiagramm/layer-diagram.uxf
@@ -0,0 +1,7 @@
+<diagram program="umletino" version="15.0.0"><zoom_level>10</zoom_level><element><id>UMLPackage</id><coordinates><x>390</x><y>60</y><w>340</w><h>100</h></coordinates><panel_attributes>UI</panel_attributes><additional_attributes></additional_attributes></element><element><id>UMLPackage</id><coordinates><x>390</x><y>180</y><w>460</w><h>120</h></coordinates><panel_attributes>Domain</panel_attributes><additional_attributes></additional_attributes></element><element><id>UMLPackage</id><coordinates><x>390</x><y>330</y><w>460</w><h>120</h></coordinates><panel_attributes>Technical Services</panel_attributes><additional_attributes></additional_attributes></element><element><id>UMLPackage</id><coordinates><x>400</x><y>90</y><w>100</w><h>60</h></coordinates><panel_attributes>Views (JFX)</panel_attributes><additional_attributes></additional_attributes></element><element><id>UMLPackage</id><coordinates><x>400</x><y>220</y><w>100</w><h>60</h></coordinates><panel_attributes>IO</panel_attributes><additional_attributes></additional_attributes></element><element><id>UMLPackage</id><coordinates><x>400</x><y>370</y><w>100</w><h>60</h></coordinates><panel_attributes>Jackson</panel_attributes><additional_attributes></additional_attributes></element><element><id>UMLPackage</id><coordinates><x>510</x><y>220</y><w>100</w><h>60</h></coordinates><panel_attributes>Types</panel_attributes><additional_attributes></additional_attributes></element><element><id>UMLPackage</id><coordinates><x>620</x><y>220</y><w>100</w><h>60</h></coordinates><panel_attributes>Models</panel_attributes><additional_attributes></additional_attributes></element><element><id>UMLPackage</id><coordinates><x>510</x><y>90</y><w>110</w><h>60</h></coordinates><panel_attributes>Controllers (JFX)</panel_attributes><additional_attributes></additional_attributes></element><element><id>UMLPackage</id><coordinates><x>510</x><y>370</y><w>100</w><h>60</h></coordinates><panel_attributes>Logging</panel_attributes><additional_attributes></additional_attributes></element><element><id>UMLPackage</id><coordinates><x>620</x><y>370</y><w>100</w><h>60</h></coordinates><panel_attributes>JavaFX</panel_attributes><additional_attributes></additional_attributes></element><element><id>UMLPackage</id><coordinates><x>730</x><y>220</y><w>110</w><h>60</h></coordinates><panel_attributes>Services</panel_attributes><additional_attributes></additional_attributes></element><element><id>UMLPackage</id><coordinates><x>730</x><y>370</y><w>110</w><h>60</h></coordinates><panel_attributes>HTTP/API</panel_attributes><additional_attributes></additional_attributes></element><element><id>Relation</id><coordinates><x>570</x><y>150</y><w>90</w><h>70</h></coordinates><panel_attributes>lt=.&gt;
+</panel_attributes><additional_attributes>70;10;10;50</additional_attributes></element><element><id>Relation</id><coordinates><x>570</x><y>290</y><w>110</w><h>80</h></coordinates><panel_attributes>lt=.&gt;
+</panel_attributes><additional_attributes>90;10;10;60</additional_attributes></element><element><id>Relation</id><coordinates><x>340</x><y>120</y><w>350</w><h>400</h></coordinates><panel_attributes>lt=.&gt;
+</panel_attributes><additional_attributes>60;10;10;10;10;380;330;380;330;310</additional_attributes></element><element><id>Relation</id><coordinates><x>770</x><y>270</y><w>30</w><h>120</h></coordinates><panel_attributes>lt=.&gt;
+</panel_attributes><additional_attributes>10;10;10;100</additional_attributes></element><element><id>Relation</id><coordinates><x>360</x><y>250</y><w>60</w><h>180</h></coordinates><panel_attributes>lt=.&gt;
+</panel_attributes><additional_attributes>40;10;10;10;10;160;40;160</additional_attributes></element><element><id>Relation</id><coordinates><x>610</x><y>120</y><w>70</w><h>120</h></coordinates><panel_attributes>lt=.&gt;
+</panel_attributes><additional_attributes>10;10;50;10;50;100</additional_attributes></element></diagram>
\ No newline at end of file