diff --git a/src/main/asciidoc/developer_documentation.adoc b/src/main/asciidoc/developer_documentation.adoc
index e596b0e..c02ec33 100644
--- a/src/main/asciidoc/developer_documentation.adoc
+++ b/src/main/asciidoc/developer_documentation.adoc
@@ -175,6 +175,8 @@ image:models/design/clientServer.svg[]
 
 ==== Design Patterns
 * Spring MVC
+* Template Method in `UserForm` (hook method `validatePasswordGeneric`)
+* Template Method in `InventoryMutateForm` (hook method `modifyProductPrimitive`)
 
 ==== Persistence
 The application uses *Hibernate annotation based mapping* to map Java classes to database tables. As a database, *H2* is used.