diff --git a/docs/concept/#438-investigation-dDTR-api-endpoints/#438-investigation-dDTR-api-endpoints.md b/docs/concept/#438-investigation-dDTR-api-endpoints/#438-investigation-dDTR-api-endpoints.md
index 808179e1f7..44204bdea0 100644
--- a/docs/concept/#438-investigation-dDTR-api-endpoints/#438-investigation-dDTR-api-endpoints.md
+++ b/docs/concept/#438-investigation-dDTR-api-endpoints/#438-investigation-dDTR-api-endpoints.md
@@ -73,13 +73,18 @@ No impact on data consumers.
![AAS_Access_v3_Architecture.svg](AAS_Access_v3_Architecture.svg)
+This diagram was created with Inkscape from
+the original JPG from
+[#438: Investigation and impact determination on new dDTR API endpoints for access management](https://github.com/eclipse-tractusx/item-relationship-service/issues/438)
+in order to fulfill [TRG 1.04](https://eclipse-tractusx.github.io/docs/release/trg-1/trg-1-4).
+
## Glossary
| Abbreviation | Name |
|--------------|---------------------------|
-| CRUD | Create Read Update Delete |
-| MIW | Managed Identity Wallet |
-| AAS | Asset Adminstration Shell |
+| CRUD | Create Read Update Delete |
+| MIW | Managed Identity Wallet |
+| AAS | Asset Adminstration Shell |
## References
- [Concept of CRUD API for Access management APIs](https://github.com/eclipse-tractusx/sldt-digital-twin-registry/issues/291)
diff --git a/docs/concept/#438-investigation-dDTR-api-endpoints/AAS_Access_v3_Architecture.svg b/docs/concept/#438-investigation-dDTR-api-endpoints/AAS_Access_v3_Architecture.svg
index 954b327ec8..3d82062026 100644
--- a/docs/concept/#438-investigation-dDTR-api-endpoints/AAS_Access_v3_Architecture.svg
+++ b/docs/concept/#438-investigation-dDTR-api-endpoints/AAS_Access_v3_Architecture.svg
@@ -3,6 +3,8 @@