diff --git a/model/uml/o-ran-a-model-explanation.di b/model/uml/o-ran-a-model-explanation.di
new file mode 100644
index 0000000..8c549ee
--- /dev/null
+++ b/model/uml/o-ran-a-model-explanation.di
@@ -0,0 +1,2 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<architecture:ArchitectureDescription xmi:version="2.0" xmlns:xmi="http://www.omg.org/XMI" xmlns:architecture="http://www.eclipse.org/papyrus/infra/core/architecture" contextId="org.eclipse.papyrus.infra.services.edit.TypeContext"/>