where are the advanced workflow definitions?

[targa2000]

anyone know the path to the workflow definitions in the alfresco repository?

[zaizi]

./alfresco32r/tomcat/webapps/alfresco/WEB-INF/classes/alfresco/workflow/adhoc_processdefinition.xml
./alfresco32r/tomcat/webapps/alfresco/WEB-INF/classes/alfresco/workflow/changerequest_processdefinition.xml
./alfresco32r/tomcat/webapps/alfresco/WEB-INF/classes/alfresco/workflow/invitation-moderated_processdefinition.xml
./alfresco32r/tomcat/webapps/alfresco/WEB-INF/classes/alfresco/workflow/invitation-nominated_processdefinition.xml
./alfresco32r/tomcat/webapps/alfresco/WEB-INF/classes/alfresco/workflow/parallelreview_group_processdefinition.xml
./alfresco32r/tomcat/webapps/alfresco/WEB-INF/classes/alfresco/workflow/parallelreview_processdefinition.xml
./alfresco32r/tomcat/webapps/alfresco/WEB-INF/classes/alfresco/workflow/review_pooled_processdefinition.xml
./alfresco32r/tomcat/webapps/alfresco/WEB-INF/classes/alfresco/workflow/review_processdefinition.xml
./alfresco32r/tomcat/webapps/alfresco/WEB-INF/classes/alfresco/workflow/submit_processdefinition.xml
./alfresco32r/tomcat/webapps/alfresco/WEB-INF/classes/alfresco/workflow/submitdirect_processdefinition.xml
‍‍‍‍‍‍‍‍‍‍‍‍

[targa2000]

where are the simple workflow definitions and are actual workflows that users have defined with these definitions actually stored somewhere in a folder in alfresco?