Here is the schema: Table: Organization Table: Member Table: Role Join Table: Organization_Member Join Table: Organization_member_Role A member can belong to N number of Organization and for each organization the member can have more then one Role I need to know what what kind of relation ship do I need to use in Hibernate to provide the above mapping. Thanks, Nas. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4039638#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...