XMP Specification September 2005 79 XMP Schemas Property Value Types 4 Media Management Value Types AgentName The name of a program. The suggested convention is “vendor app version”—for example “Adobe Acrobat Distiller 5.0”. RenditionClass The type of rendition, from a controlled vocabulary of standard names (an open Choice). A series of colon-separated tokens and parameters, the first of which names the basic concept of the rendition. Additional tokens are optional and provide specific characteristics of the rendition. Defined values are: ResourceEvent A high level event that occured in the processing of this document. ● The field namespace URI is http://ns.adobe.com/xap/1.0/sType/ResourceEvent# ● The preferred field namespace prefix is stEvt default The master document no additional tokens allowed. thumbnail A simplified or reduced preview of a version. Additional tokens can provide characteristics. The recommended order is: thumbnail:format:size:colorspace. For example: thumbnail:jpeg,thumbnail:16x16,thumbnail:gif:8x8:bw. screen Screen resolution or Web rendition. proof A review proof. draft A review rendition. low-res A low resolution, full size stand-in. Field Name Value Type Description action open Choice The action that occurred. Defined values are: converted, copied,created,cropped,edited,filtered,formatted, version_updated,printed,published,managed,produced, resized New values should be verbs in the past tense. instanceID URI The instance ID of the modified resource. parameters Text Additional description of the action. softwareAgent AgentName The software agent that performed the action. when Date Optional timestamp of when the action occurred.