Extensible Access Control Markup Language Became an OASIS standard in February 2003. XACML defines a general policy language used to protect resources as well as an access decision language. See Phil Griffin's [[http://dev2dev.bea.com/pub/a/2004/02/xacml.html|Introduction To XACML]] for some background. See also [[http://sunxacml.sourceforge.net/|Sun's XACML Implementation]] and the [[http://www.oasis-open.org/committees/tc_home.php?wg_abbrev=xacml|OASIS technical committee]] for XACML.