diff --git a/apps/face-detection/chart/Schema.yaml b/apps/face-detection/chart/Schema.yaml
new file mode 100644
index 0000000..0cb0e6d
--- /dev/null
+++ b/apps/face-detection/chart/Schema.yaml
@@ -0,0 +1,13 @@
+schema: |
+  type ImageSegment {
+    id: ID!
+    upperLeftX: Float!
+    upperLeftY: Float!
+    lowerRightX: Float!
+    lowerRightY: Float!
+    sourceImage: Image! @hasInverse(field: segments)
+  }
+
+  extend type Image {
+    segments: [ImageSegment] @hasInverse(field: sourceImage)
+  }