Association for Library Collections and Technical Services
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How does VRA Core 3.0 relate to VRA Core 2.0?The VRA Core 3.0 conflates the Work (W) and the Visual Document (V) element sets from VRA Core 2.0 into a single universally applicable element set. Core 3.0 retains the same order of elements, and where possible, the same category titles and definitions that were used in Core 2.0. Users of the Core 3.0 will wish to rearrange these elements in their local applications into sequences which reflect their needs. Because work and image records use the same element set, a new element Record Type was added. This element defines the type of resource that is being described. VRA Core 3.0 also includes a new "Rights" element as well as new category qualifiers. What is a Work?In the context of the VRA Core 3.0, a work is a physical entity that exists, has existed at some time in the past, or that could exist in the future. It might be an artistic creation such as a painting or a sculpture; it might be a performance, composition, or literary work; it might be a building or other construction in the built environment; or it might be an object of material culture. Works may be single items, or they may consist of many parts. What is an Image?An image is a visual representation of a work. It can exist in photomechanical, photographic and digital formats. In a typical visual resources collection, an image is a reproduction of the work that is owned by the cataloging institution and is typically a slide, photograph, or digital file. A visual resources collection may own several images of a given work. The term "visual document", which was used in the VRA Core 2.0, has been eliminated because a visual document could be defined not only as an image but as a type of work, such as a preparatory sketch or an architectural plan for a building. How do Work records and Image records link to each other?How the VRA Core 3.0 element sets are linked to form a single record is a local database implementation issue; however, it is assumed that work records will be linked to the relevant image records. For many collections, the creation of two linked element sets to describe a work (e.g., a painting) and an image (e.g., a slide of that painting) will be sufficient. In other cases a work (e.g., a building) might be linked to multiple images (e.g., digital images showing different aspects of the building). However, it will become increasingly common to associate two or more image records with a given work record to document the existence of different formats slides, digital files, photographs, etc. Naturally most people will not want to create more levels than necessary in order to describe the sequence from work to image. Often only two element sets will be necessary; however, sometimes intermediate sets will be unavoidable. It is possible to repeat and link together the VRA Core 3.0 element set in order to more fully describe a work for which a "visual document" (i.e., another work) exists. For instance, one might use an element set to describe a building's structure and another linked element set to describe the" visual document" (e.g., a site plan). The image record(s) will then be linked to the appropriate work record. This will allow views of the building to be associated with the primary work (the building) and images of the plan with the record for the "visual document." An alternative solution which will be appropriate in certain cases is to use the Relation element as the linking mechanism. For instance, this solution should allow the cataloger to relate a painting with a copy of that painting.
Am I required to use every category?Only those elements which are relevant for a specific record should contain data. There is no need to place any data value, including "n/a" or "unknown" into these elements to indicate that they are blank. There is no requirement to include a minimum number of elements in order to create a valid record. May I repeat categories?All categories and qualifiers are repeatable. Moreover, identical data values may be used in more than one category. How do I control the data values for each element?The Data Standards Committee recommends the use of controlled vocabularies, particularly the Getty vocabularies and other standard authorities for use with many of the categories. No single authority will suffice for the entire set of the VRA Core Categories, Version 3.0 or even in many cases for a single element in the set. We suggest that collections compile a list of data content vocabularies and authorities which are appropriate for use for each field in their local applications. We also suggest that each collection limit the number of authorities or vocabularies used in each field, and, if possible, to indicate which authority has been used. We recommend that collections develop uniform ways of entering data into the fields of their local applications. Some of these issues will be addressed and resolved by the Committee when it compiles further guidance and recommendations for the use of controlled vocabularies. The VRA Core 3.0 is a work in progressAlthough the basic categories are set as prescribed in this document, the Data Standards Committee will continue to develop the VRA Core 3.0 in the following areas:
We welcome your comments and suggestions. Please contact Elisa Lanzi (elanzi@smith.edu) or Linda McRae (mcrae@chekhov.arts.usf.edu) Category attributesIn this document, each category is displayed with the following attributes: Qualifiers = indicates existence of qualifiers and label Definition = a narrative statement that defines the concept of the category. Data Values = recommendations for use of controlled vocabularies or standardized lists. VRA Core 2.0 = mapping to VRA Core Categories 2.0 CDWA = mapping to the Categories for the Description of Works of Art Dublin Core = mapping to Dublin Core Metadata Element Set, Version 1.1 Comment = questions and comments for discussion |