Catalog records deal with 'facts' of description substantiated by a trained cataloger examining the physical item in hand—'inferences' should never come into play other than perhaps in a note indicated as such. It takes people power (time/money) to fill in data fields/codes using human expertise and judgment. Links and inferences can be misleading and outright wrong. (I remember a few instances when catalog records were 'mutilated' by bad authority control links, such as the time Madonna (rock singer) was substituted for the Virgin Mary. Wrong inference!) Yes, many records have Fixed Field data or other data/tags missing for a variety of reasons. In the early days it wasn't always seen as critically important by some folks either because it sometimes duplicated what was already stated in the 'important part' of the record, or time and work quotas didn't allow that level of detail, etc. And some would ignore its importance if it didn't affect what printed on the cards—not thinking about the possibilities that computer applications might bring (for better or worse) in the future. And the fact that it is next to impossible to get ILS vendors to incorporate the use of so much potentially helpful data in our MARC records certainly played a role in which data was viewed as important or unimportant. One thing I know for sure: no matter what the framework, the usefulness of a catalog record is only as good and complete as the human thought and effort that went into its creation; and attempts to change or expand upon that through extraneous means should be viewed with a critical eye. Michael Ayres | Technical Services Manager City of Irving l Irving Public Library System 801 W. Irving Blvd., Irving, TX 75060 P: (972) 721-2764 F: (972) 721-2329 [log in to unmask]<mailto:[log in to unmask]> | CityofIrving.org<cityofirving.org> From: Bibliographic Framework Transition Initiative Forum [mailto:[log in to unmask]] On Behalf Of Ross Singer Sent: Tuesday, March 10, 2015 10:35 AM To: [log in to unmask] Subject: Re: [BIBFRAME] Linked data It doesn't have to be there if it links to other things. The problem is with MARC is that that record (and each copy of it in each place) would need to be updated with every enhancement. How would the records incrementally improve? With BIBFRAME and RDF, the data *doesn't* have to be there. That's the whole point of it. But by identifying it and the resources in it, we can make inferences from other data. And since this is the design from the start, it's not shoehorning onto a data format that isn't particularly well suited for it. -Ross.