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We have just made available a MARCXML authorities to MADS stylesheet. It is at: http://www.loc.gov/standards/marcxml/xslt/MARC21slim2MADS.xsl In doing this stylesheet we discovered some additional elements that need to be added to MADS. Some of these were detailed in an earlier message on Oct. 12, 2005. These were: Under a new element called specialCharacteristics: <authorization> The type of heading for which the authority is appropriate, e.g. subdivision. (Equivalent to MARC authority 008/09 code d) This distinction is needed for some thesauri, e.g. LCSH, MESH. <descriptionRules> The set of rules, if any, used to formulate the authority. e.g. AACR2. Equivalent to 008/10 (maybe others?) For subfield $0 (record control number) in 5XX and 7XX (in MADS <related>) the only place to map currently is in an xlink attribute but that assumes that the value is a URI. In MARC authorities, $0 is for a record control number and includes the organization code followed by the control number in that system. You could formulate LCCNs into info: URIs (since they've been registered), but others may not have equivalent URIs. So it seems more appropriate to add an <identifier> under <related>. In fact we need to look at all the other elements in MADS to see which might fit under related; in MODS of course relatedItem includes all MODS elements. Probably not all are appropriate under mads:related but we need to discuss this. So at this point the stylesheet does not do anything with these elements that have no good mapping. We'd be very interested in hearing from anyone who uses the stylesheet and has any comments. Rebecca ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ ^^ Rebecca S. Guenther ^^ ^^ Senior Networking and Standards Specialist ^^ ^^ Network Development and MARC Standards Office ^^ ^^ 1st and Independence Ave. SE ^^ ^^ Library of Congress ^^ ^^ Washington, DC 20540-4402 ^^ ^^ (202) 707-5092 (voice) (202) 707-0115 (FAX) ^^ ^^ [log in to unmask] ^^ ^^ ^^ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^