diff --git a/.gitmodules b/.gitmodules
index dc8888b..39e3fd1 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -40,3 +40,6 @@
 [submodule "QM-7093-Enterprise-Data-Systems/QM-7093-Case-Study-3"]
 	path = QM-7093-Enterprise-Data-Systems/QM-7093-Case-Study-3
 	url = https://git.theschricks.com/noah/QM-7093-Case-Study-3
+[submodule "QM-7093-Enterprise-Data-Systems/QM-7093-Case-Study-4"]
+	path = QM-7093-Enterprise-Data-Systems/QM-7093-Case-Study-4
+	url = https://git.theschricks.com/noah/QM-7093-Case-Study-4
diff --git a/QM-7093-Enterprise-Data-Systems/QM-7093-Case-Study-4 b/QM-7093-Enterprise-Data-Systems/QM-7093-Case-Study-4
new file mode 160000
index 0000000..d6bb9f8
--- /dev/null
+++ b/QM-7093-Enterprise-Data-Systems/QM-7093-Case-Study-4
@@ -0,0 +1 @@
+Subproject commit d6bb9f87c95d5f12bcec856ba1bcf42ee3af1527