Dspace: Authority Control of Metadata Values *********************************************************** The advantages we seek from an authority controlled metadata field are: There is a simple and positive way to test whether two values are identical, by comparing authority keys. Comparing plain text values can give false positive results e.g. when two different people have a name that is written the same. It can also give false negative results when the same name is written different ways, e.g. J. Smith vs. John Smith. Help in entering correct metadata values. The submission and admin UIs may call on the authority to check a proposed value and list possible matches to help the user select one. Improved interoperability.By sharing a name authority with another application, your DSpace can interoperate more cleanly with other applications. For example, a DSpace institutional repository sharing a naming authority with the campus social network would let the social network construct a list of all DSpace Items matching the shared author identifier, rather than by error-prone name matching. When the name authority is shared with a campus directory, DSpace can look up the email address of an author to send automatic email about works of theirs submitted by a third party. That author does not have to be an EPerson. Authority keys are normally invisible in the public web UIs. They are only seen by administrators editing metadata. The value of an authority key is not expected to be meaningful to an end-user or site visitor. Authority control is different from the controlled vocabulary of keywords already implemented in the submission UI: Authorities are external to DSpace.The source of authority control is typically an external database or network resource. Plug-in architecture makes it easy to integrate new authorities without modifying any core code. This authority proposal impacts all phases of metadata management. The keyword vocabularies are only for the submission UI. Authority control is asserted everywhere metadata values are changed, including unattended/batch submission, LNI and SWORD package submission, and the administrative UI. ************************************************* screencast/t/NTkxY2Nj
Posted on: Sun, 16 Nov 2014 22:28:20 +0000
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