28 September 2005 XMP Specification XMP Storage Model Serializing XMP 3 ● zero or more other elements that represent qualifiers of the value. In this case, there is one property qualifier called ns:role. NOTE: All qualifier names must be legal XML qualified names. Language Alternatives Text properties may have an xml:lang property qualifier that specifies the language of the text. A common use is with language alternative arrays. Language alternatives are a form of rdf:Alt array, referred to as the Lang Alt type. In this example, each array item is a simple text value the value has a property qualifier, specified as the property xml:lang, giving the language of that value. The XMP for this array looks like this: xmp:Title rdf:Alt rdf:li xml:lang="x-default"XMP - Extensible Metadata Platform/rdf:li rdf:li xml:lang="en-us"XMP - Extensible Metadata Platform/rdf:li rdf:li xml:lang="fr-fr"XMP - Une Platforme Extensible pour les Métadonnées/rdf:li rdf:li xml:lang="it-it"XMP - Piattaforma Estendibile di Metadata/rdf:li /rdf:Alt /xmp:Title The xml:lang qualifier is written as an attribute of the XML element whose character data is the value (in this case, the rdf:li elements). Note also the special language value "x-default", which specifies the default title to be used. RDF Issues Unsupported Features XMP uses a subset of RDF. Valid XMP is limited to the RDF described in the previous sections, along with all equivalent alternate forms of that RDF. (RDF has a variety of XMP_Specification.pdf dc:title "XMP - Extensible "XMP – Piattaforma Estendibile di Metadata" "XMP - Une Platforme Extensible alt 3 4 "x-default" "fr-fr" "it-it" xml:lang xml:lang xml:lang 1 pour les Métadonnées" Metadata Platform" "XMP - Extensible "en-us" xml:lang Metadata Platform" 2