________________________________________ From: J. McRee Elrod [m...@slc.bc.ca] Sent: July-27-13 12:15 PM To: Brenndorfer, Thomas Cc: RDA-L@listserv.lac-bac.gc.ca Subject: Re: [RDA-L] RDA media terms
>> >>In he RDA/ONIX framework for Content Type one checks off an attribute >>for "two-dimensional" or "three-dimensional," >While content may be two dimensional, e.g. projected moving images, >but the carrier, e.g, the DVD, is three dimensional. Even the >thinnest piece of paper has thickness. Only the images on the paper >are two dimensional. The dimensions for content type are not based on the carrier but only on the expected human perception for the content. That's what Content Type is all about. Two-dimensional content or three-dimensional content are attributes that can apply to different content types, such as moving images. That attribute is not completely dependent on the dimensionality or physicality of the Carrier Type. It has to do with the intended primary way in which the content of the resource is to be absorbed by people. Certainly, the unmediated "object" Carrier Type is defined as three-dimensional, but that doesn't preclude other Content Type associations other than a one-to-one with "three dimensional form." For example, if the object also had notated music on it, or a map, that could easily be accommodated in RDA because Content Type is kept distinct from Carrier Type. In addition, as I indicated earlier, three dimensional form content can also be microscopic, and that requires a different Carrier Type and Media Type than "object" and "unmediated." Thomas Brenndorfer Guelph Public Library
