Hi I am doing some changes in xml files and I want to test the xml files, normally I restart the alfresco service, if I do not get error, I assume that xml is correct. From the link "http://wiki.alfresco.com/wiki/Data_Dictionary_Guide#Step_by_Step_Model_Definition", I read about "TestModel" to test the Model definition I checked in my system for "org.alfresco.repo.dictionary.TestModel", I did not find one I am using "alfresco-community-4.0.d" Thanks Joseph John