diff --git a/src/main/asciidoc/developer_documentation.adoc b/src/main/asciidoc/developer_documentation.adoc
index 4756c4a..b7f7e38 100644
--- a/src/main/asciidoc/developer_documentation.adoc
+++ b/src/main/asciidoc/developer_documentation.adoc
@@ -167,14 +167,37 @@ image:models/design/clientServer.svg[]
 === Design choices
 * Verwendete Muster
 * Persistenz
-* User Interface
-image:models/design/dialogue_map.svg[Dialog Map of the Videoshop]
-* Verwendung externer Frameworks
 
+==== User interface
+image:models/design/dialogue_map.svg[Dialog Map of the Videoshop]
+
+==== Usage of external frameworks
 [options="header", cols="1,2,3"]
 |===
-|Externes Package |Verwendet von |Warum
-|... |... |...
+|External package |Used by |Why
+|org.springframework.boot a|
+* catering
+| Simple configuration of Spring application
+|org.springframework.web a|
+* catering
+* catering.catalog
+* catering.inventory
+* catering.order
+| Application should be provided as a static website
+|org.springframework.security a|
+* catering
+* catering.inventory
+| Security features for the videoshop application and authorization of website access
+|org.springframework.data a|
+* catering.order
+| JPA connection utility to the database layer
+|org.salespointframework a|
+* catering
+* catering.catalog
+* catering.inventory
+* caterin.orger
+* caterin.users
+| Reuse of SalesPoints POS functionality
 |===
 
 == Building block view
@@ -257,7 +280,12 @@ _Die folgende Tabelle zeigt die Rückverfolgbarkeit zwischen Entwurfs- und Analy
 
 [options="header"]
 |===
-|Klasse/Enumeration (Analysemodell) |Klasse/Enumeration (Entwurfsmodell)
+|Class/Enumeration (analysis) |Class/Enumeration (design)
+| Inventar | org.salespointframework.inventory.UniqueInventory
+| Auftrag | catalog.order.CustomOrder
+| Nutzer | catalog.users.User
+| Kunde | Is a role of Nutzer
+| Admin | Is a role of Nutzer
 |===
 
 == Runtime view