diff --git a/.gitignore b/.gitignore
index 6c67d7f9c..02347691f 100644
--- a/.gitignore
+++ b/.gitignore
@@ -3,4 +3,5 @@
.vscode
messages.pot
.skeema
-nbproject
\ No newline at end of file
+nbproject
+.metadata
diff --git a/docu/Concepts/TechnicalRequirements/Architecture/TechnicalOverview.md b/docu/Concepts/TechnicalRequirements/Architecture/TechnicalOverview.md
index 9a39e77d7..f0fe1e52a 100644
--- a/docu/Concepts/TechnicalRequirements/Architecture/TechnicalOverview.md
+++ b/docu/Concepts/TechnicalRequirements/Architecture/TechnicalOverview.md
@@ -2,14 +2,39 @@
This document describes the technical overview for the Gradido infrastructur. Beginning with a bird's eye view of all involved components, the following chapters will go in details of each component.
+# Inventory Taking
+
+
-# Community-Server
-## Public API
+
+## Community-Server
+
+### Public API
-## Database Skeema
+### Database Skeema
+
+
+
+
+# Ideas of future Architecture
+
+## Moduls
+
+
+
+## ObjectModel
+
+
+
+## DatabaseModel
+
+
+
+
+#
diff --git a/docu/Concepts/TechnicalRequirements/graphics/GradidoBusinessDBSkeema.drawio b/docu/Concepts/TechnicalRequirements/graphics/GradidoBusinessDBSkeema.drawio
new file mode 100644
index 000000000..f67500cfb
--- /dev/null
+++ b/docu/Concepts/TechnicalRequirements/graphics/GradidoBusinessDBSkeema.drawio
@@ -0,0 +1,209 @@
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
\ No newline at end of file
diff --git a/docu/Concepts/TechnicalRequirements/graphics/GradidoBusinessObjekte.drawio b/docu/Concepts/TechnicalRequirements/graphics/GradidoBusinessObjekte.drawio
new file mode 100644
index 000000000..c83c6f9f0
--- /dev/null
+++ b/docu/Concepts/TechnicalRequirements/graphics/GradidoBusinessObjekte.drawio
@@ -0,0 +1,184 @@
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
\ No newline at end of file
diff --git a/docu/Concepts/TechnicalRequirements/graphics/ModulsOverview.drawio b/docu/Concepts/TechnicalRequirements/graphics/ModulsOverview.drawio
new file mode 100644
index 000000000..7e3674aae
--- /dev/null
+++ b/docu/Concepts/TechnicalRequirements/graphics/ModulsOverview.drawio
@@ -0,0 +1,97 @@
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
\ No newline at end of file
diff --git a/docu/Concepts/TechnicalRequirements/image/GradidoBusinessDBSkeema.png b/docu/Concepts/TechnicalRequirements/image/GradidoBusinessDBSkeema.png
new file mode 100644
index 000000000..912fa651f
Binary files /dev/null and b/docu/Concepts/TechnicalRequirements/image/GradidoBusinessDBSkeema.png differ
diff --git a/docu/Concepts/TechnicalRequirements/image/GradidoBusinessObjekte.png b/docu/Concepts/TechnicalRequirements/image/GradidoBusinessObjekte.png
new file mode 100644
index 000000000..5d528cf42
Binary files /dev/null and b/docu/Concepts/TechnicalRequirements/image/GradidoBusinessObjekte.png differ
diff --git a/docu/Concepts/TechnicalRequirements/image/ModulsOverview.png b/docu/Concepts/TechnicalRequirements/image/ModulsOverview.png
new file mode 100644
index 000000000..a35d3b11f
Binary files /dev/null and b/docu/Concepts/TechnicalRequirements/image/ModulsOverview.png differ