Lessons Learned in Implementing the Extended Date/Time Format in a Large Digital Library

In 2012, the University of North Texas (UNT) Libraries implemented the Library of Congress Extended Date/Time Format (EDTF) into the metadata guidelines for their digital holdings which now contain more than 460,000 records. This paper discusses the evaluation process to identify the number of previously-existing dates that meet EDTF standards and those that need to be edited for conformance. It also outlines practical steps used for implementing the standard, such as date validation for metadata creators and changes to date displays for public users. Finally, it presents some of the challenges encountered during the implementation process and considerations for other institutions that may want to use the EDTF

Lessons Learned in Implementing the Extended Date/Time Format in a Large Digital Library

Presentation on the implementation of the Extended Date/Time Format (EDTF) within the University of North Texas (UNT) digital collections, including the results of an analysis performed in February 2013. It provides a summary of the kinds of date formats in the EDTF with examples from the digital collections, a description of methods used to implement and utilize the machine-readability of the format, and an overview of reasons that other institutions may want to consider switching to the EDTF