XTF Implementations

CDL Implementations

The CDL uses XTF as a building block for many production services, including:


Search and display of the scholarly output of the University of California through full-text search and descriptive metadata


Online Archive of California

Search and display of finding aids, images, and text in the Online Archive of California through full-text search and descriptive metadata



Search and display of Calisphere’s 150,000 non-textual, primary-source items through descriptive metadata


Mark Twain Project Online

Simultaneous and rich access to customized object views and highly specialized textual annotations


UC Press E-Books Collection

Search and display of monographs published by the University of California through full-text search and descriptive metadata


California Digital Library

Full-text searching within a WordPress context


CDL Partnership Implementations

SNAC: The Social Networks and Archival Context Project (prototype)

Links together descriptions of people from finding aids using the new standard Encoded Archival Context-Corporate Bodies, Persons, and Families (EAC-CPF).


Developed in partnership with IATH, University of Virginia and the UC Berkeley School of Information.

Non-CDL Implementations

XTF is also extensively used outside the CDL in both highly customized and basic implementations.

Highly customized implementations:

Chicago Collections:
Chicago Collections is a membership organization composed of not-for-profit institutions with collections that chronicle the rich history of Chicago.   Two exciting projects have been built around XTF:

  • Explore Chicago Collections
    Explore Chicago Collections unites access to archival materials on Chicago’s history and culture at archives, libraries and museums throughout the Chicago area. Members include the University of Illinois at Chicago, the Chicago Public Library, the University of Chicago, the Newberry Library, the Chicago History Museum and others. Explore Chicago Collections includes thousands of archival collections and over a hundred thousand digitized images. XTF was chosen for this project because it allowed each institution to continue using its own unique EAD and image metadata standards and practice, but still provides researchers with a user-friendly, seamless interface. Explore Chicago Collections also uses Metadata Hopper, an open source system that provides a metadata deposit and management interface for XTF.
  • Metadata Hopper
    Metadata Hopper not an XTF-driven site itself; rather, it is open source administrative system built to support XTF.  Metadata Hopper was built to support Explore Chicago Collections, a multi-institutional XTF discovery system, but was designed to be useful for other projects as well.  It enables librarians and archivists to sign in and create metadata maps for their own local XML standards and practices.  As data is deposited using those maps, Hopper creates uniform dc.xml files that XTF can use to draw a consistent interface, no matter how differently institutions may express ‘subject’ or ‘creator’.  Hopper also ‘tags’ incoming metadata records using local authority lists, so that browse facets also present a unified, simple list of options.  The mapping forms, facet authority lists, matching rules for automatic tagging and dc.xml file formats are all fully configurable in a web-based interface by a Metadata Hopper administrative user.  Metadata Hopper was developed at the University of Illinois at Chicago on behalf of the Chicago Collections consortium and with funding from the Andrew W. Mellon Foundation.

Indiana University:
Various fascinating projects

  • The Swinburne Project
    The new (March 2012) edition is a beautifully customized XTF implementation highlighting the works of poet Algernon Charles Swinburne. Of particular interest is the use of EXT JS and Ajax techniques for navigation within and among documents.
  • The Brevier Legislative Reports, Indiana University
    These reports, published biennially from 1858 to 1887, are verbatim reports of the legislative history of the Indiana General Assembly that capture the impact of significant historical events surrounding the Civil War. It’s a TEI P5 project, and includes some neat tech, including use of XTF’s sub-document indexing, and a custom page turner with page image integration. http://www.dlib.indiana.edu/collections/law/brevier/
  • Indiana Authors and Their Books
    This project is digitizing several hundred published volumes by a range of authors who wrote during Indiana’s Golden Age of Literature (1880–1920). It’s a P4 TEI Lite project. http://www.dlib.indiana.edu/collections/inauthors/
  • The Chymistry of Isaac Newton, Indiana University
    Features a seamless blend of various web tools, including XTF as the search technology. http://webapp1.dlib.indiana.edu/newton/
  • Indiana Magazine of History
    A scholarly, historical journal which has been presented within a significantly customized XTF framework that integrates seamlessly with our METS Nav page turner.
  • Victorian Women Writers Project
    A collection of the writings of lesser-known British women writers of the 19th century.
  • Indiana University Finding Aids
    A search and browse resource for EAD encoded finding aids.

OAPEN Library
OAPEN (Open Access Publishing in European Networks) is a collaborative initiative to develop and implement a sustainable Open Access publication model for academic books in the Humanities and Social Sciences.

The Encyclopedia of Chicago
A collaboration between the Chicago Historical Society, Northwestern University, and Newberry Library; the first non-CDL project to deploy XTF in production.

LexML Portal, Brazil
Full-text search and display of items in a language other than English

De Humani Corporis Fabrica, Northwestern University

Frontiers of Science, University of Sydney Library
Search and display of comic books through descriptive metadata

University of Sydney, Australia:
The two science collections demonstrate XTF’s support for very detailed taxonomies. The implementation of XTF for these collections is described in detail in Rowan Brownlee’s Beginner’s Guide to XTF

English <> Spanish Dictionary, Granada University, Spain

Lightly Customized Implementations:

Arizona Archives Online

Blackwell Publishing:
Digitally published books

Durham University Library Special Collections, UK

EECS Tech Reports, U.C. Berkeley

Finding Aids at the University of Buffalo

Finding Aids Database at Yeshiva University

Indiana University:

Morehouse College Martin Luther King Jr. collection

Naval Reactors History Database

North Carolina State University Collection Guides

OhioLink Finding Aids Repository, a consortium of archives, libraries, and other institutions in the state of Ohio

University of Georgia:

University of Kansas Libraries:

University of Tennessee Digital Library Initiatives

University of Virginia Dictionary of the History of Ideas

Visual Arkiv, Sweden