LRTS 60(4) 223 BIBFRAME Transformation for Enhanced Discovery Qiang Jin, Jim Hahn, and Gretchen Croll With support from an internal innovation grant from the University of Illinois Library at Urbana-Champaign, researchers transformed and enriched near- ly 300,000 e-book records in their library catalog from Machine-Readable Cataloging (MARC) records to Bibliographic Framework (BIBFRAME) linked data resources. Researchers indexed the BIBFRAME resources online, and cre- ated two search interfaces for the discovery of BIBFRAME linked data. One result of the grant was the incorporation of BIBFRAME resources within an experimental Bento view of the linked library data for e-books. The end goal of this project is to provide enhanced discovery of library data, bringing like sets of content together in contemporary and easy to understand views assisting users in locating sets of associated bibliographic metadata. he BIBFRAME model, the potential successor to the MARC data model, is T an effort to transition the MARC 21 format to linked data. It was first intro- duced in the Library of Congress (LC) report, “Bibliographic Framework as a Web of Data: Linked Data Model and Supporting Services” in 2012.1 BIBRAME can be situated within the context of semantic technologies that make possible contextual and interlinked resources on the broader web. The development of BIBFRAME is a response to the effects of online networked information, lever- aging search engines, their impact on discovery of library collections, and the need for standardization of bibliographic resources as those resources move into linked data environments. Background on BIBFRAME Development Qiang Jin ([email protected]) is the Authority Control Team Leader and To understand the BIBFRAME model, one must first explore common infor- Senior Coordinating Cataloger, Univer- sity of Illinois at Urbana-Champaign. Jim mation modeling terminology, particularly the fundamental entity-relationship Hahn ([email protected]) is Orienta- (ER) model. The BIBFRAME model is based on the ER model developed by tion Services and Environments Librari- Peter Chen in 1976.2 There are three basic elements in the ER model: entities, an, University of Illinois at Urbana-Cham- paign. Gretchen Croll (gacroll34@gmail attributes, and relationships. According to Chen, an entity is a “thing” that can be .com) is R&I Operations Specialist I, distinctly identified. Entities are the “things” about which we seek information. A Orrick, Herrington & Sutcliffe LLP. specific person, company, or event is an example of an entity. A relationship is an Manuscript submitted August 23, 2015; association between instances of entities. Attributes are the data that we collect returned to authors November 6, 2015 for revision; revised manuscript submit- about the entities. For example, attributes of a person entity may include a first ted December 18, 2015; manuscript name, last name, birth date, and title. Relationships illustrate how instances of returned to authors on February 29, 2016 entities are related to one another. These broad concepts make up the concep- for additional revision; revised manu- script submitted March 29, 2016; paper tual underpinnings of the BIBFRAME model. The LC project page introducing accepted for publication April 1, 2016. BIBFRAME gives the following motivation for the model: “BIBFAME provides 224 Jin, Hahn, and Croll LRTS 60(4) BIBFRAME entity is authority. It includes FRBR group 2 entities for person, family, and corporate body, and FRBR group 3 entities for concept, object, event, and place. According to the report “Bibliographic Framework as a Web of Data,” BIBFRAME authorities are not designed to replace existing authority efforts but rather provide a common abstraction layer over various different web based authority efforts to make them even more effective.5 The fourth BIBFRAME entity is annotation. It is used to iden- tify library holdings, cover art and reviews. BIBFRAME aims to publish and share library bibliographic and authority data via the web. It provides links to connect different pieces of information or resources and aspires to be a replacement for MARC. A key difference between MARC and BIB- FRAME is that MARC presents bibliographic information as catalog records, which duplicates information across multiple records. As an example of this duplication, con- sider that many MARC records contain the same author’s name, a repetition that is not a part of BIBFRAME since BIBFRAME emphasizes relationships between resources and can reference already existing links. Some of the rela- tionships BIBFRAME holds include work-to-work relation- ships, work-to-instance relationships, instance-to-instance relationships, and work to authority relationships. In 2013, LC issued a call encouraging libraries to test the BIBFRAME model. Inspired by a study testing the BIBFRAME model for audiovisual resources, the authors conducted an independent test focusing on e-books in the University of Illinois’ online catalog. 6 Our hope was that we would be able to contribute to the revision of the BIB- FRAME model for that specific format. It should be noted that at the time of this writing (late March 2016) there are now several proposed revisions to the BIBFRAME vocabu- lary, these draft documents are available as “BIBFRAME 2.0 Figure 1. The BIBFRAME Model Draft Specifications” on LC’s BIBFRAME page.7 Our proj- ect references the BIBFRAME specifications from 2014, and a foundation for the future of bibliographic description, is one of fourteen projects registered at the LC BIBFRAME both on the web and in the broader networked world. BIB- Implementation site as of March 2016.8 The BIBFRAME FRAME serves as a general model for expressing and con- implementation site includes projects from libraries in Cuba, necting bibliographic data.”3 Figure 1 is an illustration of the England, Egypt, Germany, and the United States. BIBFRAME model. The BIBFRAME data model descends from the Func- Innovation Grant Goals and Outcomes tional Requirements for Bibliographic Records (FRBR) conceptual model, but is not an exact implementation of The University of Illinois Library issues a biannual call for that conceptual model. FRBR has four entity sets: work, innovation proposals that will enable the library to explore expression, manifestation, and item. The FRBR entity sets new ways of working. Funding amounts vary, and have been work and expression are known in BIBFRAME as the entity supported up to $10,000. The funding source for the BIB- work. FRBR entities manifestation and item are known in FRAME grant provided graduate hourly student employees. BIBFRAME as the entity instance.4 The two graduate students who worked on this project were The BIBFRAME entity work is a resource reflecting sourced from the Graduate School of Library and Informa- the conceptual nature of the resource being cataloged. A tion Science and the Department of Computer Science at BIBFRAME entity instance is a resource reflecting an the University of Illinois. Two professional tenured librar- individual, material embodiment of the work. The third ians led the investigation—first by way of manually derived LRTS 60(4) BIBFRAME Transformation for Enhanced Discovery 225 exploration of linked data transformation and enrichment, and after a model was developed for the e-book format with- in BIBFRAME, the transformation and enrichment was automated with original programming. Objectives of the BIBFRAME inno- vation grant include the following: • studying how to provide enhanced discovery of similar sets of content in the library system with the BIB- FRAME model • contributing a module of Bento-style search results in the BIBFRAME model9 • enriching the BIBFRAME model with linked data that connected to Figure 2. FRBR Work, Expression, Manifestation, and Instance mapped to BIBFRAME other open linked data projects entities • writing a report on issues encoun- tered and recommendations for e-book records in the BIBFRAME model. MARC has been a leading exemplar—research such as the transformation and enrichment project described here would By the conclusion of the innovation grant, the team not be possible. The 2008 report “On the Record by the LC transformed and enriched nearly 300,000 e-book records Working Group on the Future of Bibliographic Control,” and has developed two prototype search interfaces. The two written by a group of well-known experts, argues that the options for retrieval of linked data records include a Google library community needs to recognize that the World Wide Custom Search Engine that surfaces the structured data Web is our technology platform and the appropriate plat- in the result list, and a Bento-style result layout for e-book form for the delivery of our standards.14 Since many e-book search in addition to articles and other catalog data. The users primarily locate information resources through web grant work is summarized on a project website.10 The team searches, and not library discovery systems, we theorized has made the linked data enrichment code available through that e-books are a natural target for BIBFRAME transfor- an online code repository.11 mation and indexing on the web. Dean’s paper indicates that we live in the age of Google, and our catalogs should reflect the information-seeking behavior of today’s user, not the Literature Review user of one hundred years ago.15 Rollitt states in her paper that BIBFRAME might change libraries in a profound way.16 Enthusiasm for BIBFRAME has been high among several It will link bibliographic data and will move bibliographic librarians whose work we review here, but since exemplars data to the web for access and management, which could of large-scale implementations do not yet exist, the debate generate new types of library services. Consider one library is still open as to whether BIBFRAME should be adopted. service available as a result of BIBFRAME transformation: Among those reasons to pursue BIBFRAME projects is locating e-books from your home library primarily from a the concern that MARC may not be adequate to meet the search engine.