diff --git a/docs/developer/service-descriptions/uml/AttestPartitioning.puml b/docs/developer/service-descriptions/uml/AttestPartitioning.puml
new file mode 100644
index 0000000..9e85862
--- /dev/null
+++ b/docs/developer/service-descriptions/uml/AttestPartitioning.puml
@@ -0,0 +1,23 @@
+'-------------------------------------------------------------------------------
+' Copyright (c) 2021, Arm Limited and Contributors. All rights reserved.
+'
+' SPDX-License-Identifier: BSD-3-Clause
+'
+'-------------------------------------------------------------------------------
+
+@startuml
+
+package claims
+package client
+package key_mngr
+package reporter
+package provider
+package protocol
+
+client ..> protocol
+provider ..> protocol
+provider ..> reporter
+provider ..> key_mngr
+reporter ..> claims
+
+@enduml