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Content Class 06: Technical: Media Types, Manifestations, Renditions, Locations & IDs |
ADMIN & EMEDIA LABELS |
METADATA DESCRIPTORS |
METADATA ATTRIBUTES |
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The metadata elements clustered under TECHNICAL: MEDIA TYPES, MANIFESTATIONS, RENDITIONS, LOCATIONS & IDS provide both formal and informal designations for the technical manifestations (or instantiations) in which a media item exists. |
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1. MEDIA TYPE: Most often, a media item in the UEN Digital Media Service will be catalogued strictly as a single media type (a video, an audio, a document, image, or interactive object). 2. MEDIA MANIFESTATIONS: A media item may manifest itself as either a digital media item or a corporeal, physical item. 3. DIGITAL RENDITIONS ATTRIBUTES: A digital media item may have multiple file formats or renditions associated with its file type, each with its own set of attributes. These are reported as... TYPE (MIME) SIZE (file size) INFO (file attributes) 4. PHYSICAL RENDITIONS ATTRIBUTES: A physical media item may exist in multiple formats or renditions. End users need to know what that format is, as well as its location and any unique ID associated with the media item at that location. A summary data field draws its information from three attributes that are combined into single statements. PHYSICAL FORMAT: A physical media item may exist in multiple formats or renditions associated with the type of media it is in (VHS, Beta, DVD, CD, etc.) PHYSICAL LOCATION: Renditions for a media item may be available for download from a digital storage location or may be found in some physical location, building, department, library or shelf. For digital media items, the location is irrelevant because the digital asset management system handles the presentation and delivery of the asset to the end user through the web interface. For physical media items, location is relevant to the end user who may wish to acquire the asset. That location should be identified. LOCATION ID: The Location ID employs an unambiguous reference or identifier for a media item in a specific location. Best practice is to identify the media item with a string or number corresponding to an established or formal identification system if one exists (Dewey Decimal, Library of Congress, Amazon.com, etc.) |
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Media type-Formal |
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[for cataloging] |
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The descriptor MEDIA TYPE-FORMAL identifies at a general, high level, the type of media that presents content to an observer, e.g, as a sound or text or moving image. |
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UMAP has formulated a companion metadata field called MEDIA TYPE-INFORMAL with a picklist of values more suitable to educational venues and end users. umap_media_type_formal is a companion metadata field which use slightly less colloquial terms to identify the media type for an item. It is used for cataloging and not published to end users. The data (from their standardized list of media types) is useful if a crosswalk needs to be conducted with an external metadata schema. |
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The formal media types are drawn from a list of terms used by the Library of Congress and Dublin Core. For a comprehensive definitions of each media type, see Dublin Core Media Types The brief definitions are provided under "Explanation of picklist terms... |
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More info explaining the picklist terms... |
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Animation The term "animation" is not part of the Dublin Core list of media types. A media item that is an animation, whether television, film, or computer software-based (like Flash), is more quickly understood to be a certain media type in the end user mind, rather than if the media item were called a Moving Image. Collection A collection is an aggregation of items. The term collection means that the resource is described as a group; its parts may be separately described and navigated. Dataset A dataset is information encoded in a defined structure (for example, lists, tables, and databases), intended to be useful for direct machine processing. Event An event is a non-persistent, time-based occurrence. Metadata for an event provides descriptive information that is the basis for discovery of the purpose, location, duration, responsible agents, and links to related events and resources. The resource of type event may not be retrievable if the described instantiation has expired or is yet to occur. Examples - exhibition, web-cast, conference, workshop, open-day, performance, battle, trial, wedding, tea-party, conflagration. Image An image is a primarily symbolic visual representation other than text. It is a static visual representation. Examples of still images are: paintings, drawings, graphic designs, plans and maps. Recommended best practice is to assign the type "text" to images of textual materials. Instances of the type "Still Image" must also be describable as instances of the broader type "Image". Interactive Resource An interactive resource is a resource which requires interaction from the user to be understood, executed, or experienced. For example - forms on web pages, applets, multimedia learning objects, chat services, virtual reality. Moving Image A series of visual representations that, when shown in succession, impart an impression of motion. Examples of moving images are: animations, movies, television programs, videos, zoetropes, or visual output from a simulation. Physical Object An inanimate, three-dimensional object or substance. For example -- a computer, the great pyramid, a sculpture. Note that digital representations of, or surrogates for, these things should use Image, Text or one of the other types. Service A service is a system that provides one or more functions of value to the end-user. Examples include: a photocopying service, a banking service, an authentication service, interlibrary loans, a Z39.50 or Web server. Software Software is a computer program in source or compiled form which may be available for installation non-transiently on another machine. For software which exists only to create an interactive environment, use interactive instead. Sound A sound is a resource whose content is primarily intended to be rendered as audio. For example - a music playback file format, an audio compact disc, and recorded speech or sounds. Text A text is a resource whose content is primarily words for reading. For example - books, letters, dissertations, poems, newspapers, articles, archives of mailing lists. Note that facsimiles or images of texts are still of the genre text |
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Animation Artifact Collection Dataset Event Image Interactive Resource Lesson Plan Moving Image (videos & films) Physical Object Service Software Sound Text |
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Collection [Group of things, could be a mixture of these examples] Dataset [Statistical data file, CD-ROM of data, database] Event [Gallery opening, symposium, parade] Image [Map, stereograph, photograph, painting, engraving] [photographs, paintings, drawings, graphic designs, plans and maps] Interactive Resource [video game, virtual exhibit] Moving Image [animations, movies, television programs, videos] Physical Object [Museum piece, architectural structure, monument] Service [System that provides function for the end-user, such as e-commerce order fulfillment] Software [Application software such as presentation viewer, word processor] Sound [Sound recording] Text [Scrapbook, diary, poem, home page, manuscripts, music score; Note that page images are text] |
