Has the Bibframe namespace changed?

[dazza-codes]

For works in BF1, we use

• PREFIX bf: <http://bibframe.org/vocab/>.

When I loaded BF2 data into Blazegraph and searched for works using that prefix, it found nothing. I then inspected some data and found entries using <http://id.loc.gov/ontologies/bibframe/Work>. Is this correct for BF2?

The MARC was converted to BF2 using https://github.com/lcnetdev/marc2bibframe2, i.e.

• https://github.com/lcnetdev/marc2bibframe2/blob/master/xsl/marc2bibframe2.xsl
  • https://github.com/lcnetdev/marc2bibframe2/blob/master/xsl/marc2bibframe2.xsl#L6
  • xmlns:bf="http://id.loc.gov/ontologies/bibframe/"

See slack discussion at https://ld4star.slack.com/archives/ld4all_ontology/p1489165653000190

[dazza-codes]

Rebecca Younes confirmed that this namespace change is correct. She says that LOC have declared this change, by design. It’s not a bug in the BF2 converter.

The implication is that any code using the previous namespace must be updated to use the new namespace. In general, code should declare a prefix for it, something like:

• PREFIX bf: <http://id.loc.gov/ontologies/bibframe/>

When code defines this prefix in one place, it only needs to be updated there.