On 12/5/13 8:11 AM, Eric Lease Morgan wrote:
> Where will I get the URIs from? I will get them by combining some sort
> of unique code (like an OCLC symbol) or namespace with the value of
> the MARC records' 001 fields.
You actually need 3 URIs per triple:
subject URI (which is what I believe you are creating, above)
predicate URI (the "data element" URI, like
object URI (the URI for the data you are providing, like
The first two MUST be URIs. The third SHOULD be a URI but can also be a
string. However, strings, in the linked data space, do NOT LINK. If you
only have strings in the object/value space then you can run searches
against your data, but your data cannot link to other data. Creating
linked data that doesn't link isn't terribly useful.
(In case this doesn't make sense to anyone reading, I have a slide deck
that illustrates this. I've uploaded it to:
A key first step for all of us is to start getting identifiers into our
data, even before we start thinking about linked data. MARC records in
systems that recognize authority control should be able to store or
provide on output the URI of every authority-controlled entity. This
should not be terribly difficult (ok, famous last words, I know). But if
your vendor system can "flip" headings then it should also be able to
provide a URI (especially since LC has conveniently made their URIs
derivable from the LC record numbers).
With identifiers for things, THEN you are really linking.
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