diff --git a/src/main/asciidoc/developer_documentation.adoc b/src/main/asciidoc/developer_documentation.adoc
index a5e7aa0..c25df98 100644
--- a/src/main/asciidoc/developer_documentation.adoc
+++ b/src/main/asciidoc/developer_documentation.adoc
@@ -164,9 +164,19 @@ image:models/design/topLevelArchitecture.svg[]
 ==== Client-Server-Diagram
 image:models/design/clientServer.svg[]
 
-=== Design choices
-* Verwendete Muster
-* Persistenz
+
+=== Architecture decisions
+
+==== Design Patterns
+* Spring MVC
+
+==== Persistence
+The application uses *Hibernate annotation based mapping* to map Java classes to database tables. As a database, *H2* is used.
+The persistence is deactivated by default. To activate persistence storage, the following two lines in the file _application.properties_ have to be uncommented:
+....
+# spring.datasource.url=jdbc:h2:./db/videoshop
+# spring.jpa.hibernate.ddl-auto=update
+....
 
 ==== User interface
 image:models/design/dialogue_map.svg[Dialog Map of the Videoshop]