diff --git a/doc/architecture/Domain.md b/doc/architecture/Domain.md
index 8b36d39..33d8f95 100644
--- a/doc/architecture/Domain.md
+++ b/doc/architecture/Domain.md
@@ -37,7 +37,7 @@ classDiagram
         k3s_app_filename_to_provision
     }
 
-    class Terraform {
+    class TerraformDomain {
         tf_additional_vars
         tf_output_json_name
         tf_use_workspace
@@ -91,10 +91,17 @@ classDiagram
         create_bump(snapshot_suffix)
     }
 
-    Devops *-- "0..1" Image: spcialized_builds
-    Devops *-- "0..1" C4k: spcialized_builds
-    Devops *-- "0..1" ProvsK3s: spcialized_builds
-    Devops *-- "0..1" Terraform: spcialized_builds
+    class DigitaloceanTerraform {
+        do_api_key
+        do_spaces_access_key
+        do_spaces_secret_key
+    }
+
+    Devops *-- "0..1" Image: specialized_builds
+    Devops *-- "0..1" C4k: specialized_builds
+    Devops *-- "0..1" ProvsK3s: specialized_builds
+    Devops *-- "0..1" TerraformDomain: specialized_builds
+    Devops *-- "0..1" DigitaloceanTerraform: specialized_builds
     Devops *-- "0..1" Release: mixins
     Release o-- "0..1" BuildFile: primary_build_file
     Release o-- "0..n" BuildFile: secondary_build_files