diff --git a/RailWorks_Joystick_API/ClassDiagram1.cd b/RailWorks_Joystick_API/ClassDiagram1.cd
new file mode 100644
index 0000000..8e97db8
--- /dev/null
+++ b/RailWorks_Joystick_API/ClassDiagram1.cd
@@ -0,0 +1,64 @@
+<?xml version="1.0" encoding="utf-8"?>
+<ClassDiagram MajorVersion="1" MinorVersion="1">
+  <Class Name="RailWorks_Joystick_API.Joystick">
+    <Position X="1" Y="1" Width="1.5" />
+    <Compartments>
+      <Compartment Name="Nested Types" Collapsed="false" />
+    </Compartments>
+    <NestedTypes>
+      <Delegate Name="RailWorks_Joystick_API.Joystick.DeviceAxisChangedEventHandler">
+        <TypeIdentifier>
+          <NewMemberFileName>Joystick.cs</NewMemberFileName>
+        </TypeIdentifier>
+      </Delegate>
+      <Delegate Name="RailWorks_Joystick_API.Joystick.DeviceButtonChangedEventHandler">
+        <TypeIdentifier>
+          <NewMemberFileName>Joystick.cs</NewMemberFileName>
+        </TypeIdentifier>
+      </Delegate>
+    </NestedTypes>
+    <TypeIdentifier>
+      <HashCode>BAAAAAAAAAEAAEEIAAQAACAEAEAAFAEgIABRAQAAAAE=</HashCode>
+      <FileName>Joystick.cs</FileName>
+    </TypeIdentifier>
+  </Class>
+  <Class Name="RailWorks_Joystick_API.InputHandler" Collapsed="true">
+    <Position X="2.75" Y="1" Width="1.5" />
+    <TypeIdentifier>
+      <HashCode>BAgCIAAAAIgBABGAAQVIACwCQEAIkAEAACAgAABAEAY=</HashCode>
+      <FileName>InputHandler.cs</FileName>
+    </TypeIdentifier>
+  </Class>
+  <Class Name="RailWorks_Joystick_API.Map" Collapsed="true">
+    <Position X="6.25" Y="1" Width="1.5" />
+    <TypeIdentifier>
+      <HashCode>gCAAAQAAAABAAACIAAAAAAiAAAAAABAAAAAACAQAAAQ=</HashCode>
+      <FileName>InputHandler.cs</FileName>
+    </TypeIdentifier>
+  </Class>
+  <Class Name="RailWorks_Joystick_API.InputMap" Collapsed="true">
+    <Position X="4.5" Y="1" Width="1.5" />
+    <TypeIdentifier>
+      <HashCode>AECAACAAAABAAAAEACREABAAABAAAAAAAAAIGMAABAg=</HashCode>
+      <FileName>InputHandler.cs</FileName>
+    </TypeIdentifier>
+  </Class>
+  <Class Name="RailWorks_Joystick_API.Globals">
+    <Position X="2.75" Y="1.75" Width="1.5" />
+    <Compartments>
+      <Compartment Name="Nested Types" Collapsed="false" />
+    </Compartments>
+    <NestedTypes>
+      <Delegate Name="RailWorks_Joystick_API.Globals.UpdateDeviceDebugDelegate">
+        <TypeIdentifier>
+          <NewMemberFileName>Globals.cs</NewMemberFileName>
+        </TypeIdentifier>
+      </Delegate>
+    </NestedTypes>
+    <TypeIdentifier>
+      <HashCode>AAEABAABBAAAAAAAAAAAAUAKAAAAQAAAACAIAAAASAA=</HashCode>
+      <FileName>Globals.cs</FileName>
+    </TypeIdentifier>
+  </Class>
+  <Font Name="Segoe UI" Size="9" />
+</ClassDiagram>
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