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The finding aid is formatted following the Encoded Archival Description (EAD) Guidelines, version 1.0. These guidelines were written and maintained by librarians and archivists, and use the Standard General Markup Language (SGML) rules for encoding electronic documents. For more information on EAD, see the Library of Congress website at http://www.loc.gov/ead/.
Negatives from the Frank M. Hohenberger Collection were scanned to TIFF files at 600 dpi grayscale using a Hewlett-Packard ScanJet 4c with transparent media adapter. These high resolution TIFF files were reduced to 600x600 pixel screen images and 200x200 pixel thumbnails in JPEG format for web delivery.
All images are stored in the IU Digital Library Program's Fedora digital repository, running under RedHat Enterprise Linux on an IBM 8863-3RU server. A Java-based loader program was developed as part of this project to easily load images, descriptive metadata extracted from the EAD finding aid, and administrative metadata extracted from the image files themselves and from spreadsheets compiled by the scanning technicians.
Access to the images in Fedora repository is provided by a Java servlet and Java Server Pages developed by IU which use the Apache Struts framework. These servlets and JSPs operate under an Apache Tomcat server.
OCLC's PURL (Persistent Uniform Resource Locator) resolver software is used to provide unique persistent identifiers for each image and for the collection.
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Last Updated: September 14, 1998
URL: http://www.dlib.indiana.edu/collections/lilly/hohenberger/techinfo.html
Comments: diglib@indiana.edu
Copyright 1998, The Trustees of Indiana University