diff --git a/src/main/asciidoc/models/design/systemContextDiagram.puml b/src/main/asciidoc/models/design/systemContextDiagram.puml
new file mode 100644
index 0000000..2826062
--- /dev/null
+++ b/src/main/asciidoc/models/design/systemContextDiagram.puml
@@ -0,0 +1,13 @@
+@startuml
+
+:unauthenticated user\n(person): as UU
+:customer\n(person): as K
+:Hannes Wurst, administrator\n(person): as A
+
+usecase (Cateringservice\n[Softwaresystem]\nan online software for planning a catering event) as Use
+
+UU ---> Use: login as customer\nor administrator,\nregister as new customer,\nview catalog
+K ---> Use: plan a \ncatering event
+A ---> Use: remove customers,\nmanage inventory/staffs
+
+@enduml
\ No newline at end of file
diff --git a/src/main/asciidoc/models/design/systemContextDiagram.svg b/src/main/asciidoc/models/design/systemContextDiagram.svg
new file mode 100644
index 0000000..e7da3c2
--- /dev/null
+++ b/src/main/asciidoc/models/design/systemContextDiagram.svg
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:4ea3c42be8f8abe6d530ac424f5452f1badc624620ff669dcf90e41a2fc06abb
+size 5129