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Hi Malcolm, Hm, if the date of deposit denotes the creation of the archival copy, <dateCreated> might work, but only because this is a digital archive so acquiring a resource is the same as creating a copy. In general, what you're talking about sounds like holdings metadata, for which there are other XML schemata. In MODS, you'd put the elements from that schema in <extension>; if you change <originInfo>, you aren't using MODS anymore! If interoperability is not a concern, though, just write your own XML schema that imports the standard MODS schema and then redefines the content model of <originInfo>. --Andy >>> [log in to unmask] 2004-05-11 07:56:33 >>> Hello, Could somebody advise me please? The AHDS is a digital archive and we would like to record the 'date of deposit' in addition to the standard date-related subelements of MODS (date issued, created, captured, valid, and modified). Could this be done by qualifying <originInfo> by the use of a local subelement such as <ahds:dateDeposited>? e.g. <mods:originInfo> <mods:dateCreated></mods:dateCreated> <ahds:dateDeposited></ahds:dateDeposited> </mods:originInfo> or would I have to use <extension>? e.g. <mods:extension><ahds:dateDeposited> - the latter would seem rather clunky in that 'date of deposit' is clearly date-related and therefore concerns the same basic concept as the existing date-related subelements of <originInfo>. There are quite a few MODS elements that we would like to refine locally but but the user guidelines seem to me to only offer a mechanism for introducing completely new elements. Are local subelements permissible and is there a recommended approach? Similarly, can one introduce local attributes? Any help would be appreciated. We're at the stage of considering whether to use MODS. Thanks in advance, Malcolm Polfreman *************************************** Malcolm Polfreman Information Officer Arts & Humanities Data Service (AHDS) King's College London 26 - 29 Drury Lane 3rd Floor LONDON, WC2B 5RL Tel: 0207 848 1985 Fax: 0207 848 1989 Email: [log in to unmask] Website: http://ahds.ac.uk *************************************