I have been reading about Terry Halpin's Object Role Modeling (http://www.orm.net) and wonder whether anyone has been looking into mapping it into (S)CL. -r -- email: rdm at cfcl.com; phone: +1 650-873-7841 http://www.cfcl.com - Canta Forda Computer Laboratory http://www.cfcl.com/Meta - The FreeBSD Browser, Meta Project, etc.