diff --git a/docs/existing_use_cases_2.cml b/docs/existing_use_cases_2.cml
index 0a9fa90..5c76d40 100644
--- a/docs/existing_use_cases_2.cml
+++ b/docs/existing_use_cases_2.cml
@@ -41,4 +41,10 @@ UseCase U10_CML_Validators {
     actor = "Context Mapper User"
     interactions = "validate" a "CMLFile"
     benefit = "I am able to validate my CML files for their semantic correctness"
+}
+
+UseCase U11_CML_ArchUnit {
+    actor = "Context Mapper User"
+    interactions = "validate" a "CodeBase"
+    benefit = "I am able to validate my codebase against my CML model"
 }
\ No newline at end of file