Trusted Repositories

Robin Dale’s Rules
  • Receive the information with utmost
  • Store the information with integrity beyond doubt
  • Retrieve the information without
  • Apply appropriate judgment in the use of the
  • Pass the information on appropriately

These are from A.Rudersdorf Preservation Management 259 (Spring 2010). The Rules are pertaining to the trustworthiness of digital repositories, but they are such strong sound set rules that those of us in the librarianship/archive realm should take them into consider as often as possible.

Library Associations

There is a library association for nearly every possible type of library, nationally and internationally. Many of these have a closed institutional membership decree, but many more are open to individual membership. Often these associations feature a national coalition, as well as regional and state divisions.

Associations are based on types of:

Environment: academic, public, special, school;
Further Specialization: church, law, medical, theater
Function: advocacy, political, cataloging, reference
Background of Individual: ethnicity, orientation
Service Population: rural, city, youth
State and National Boundaries

Some Preservation Management Definitions

Group Definitions

Access: Permission and ability to find, examine, and use information freely (Society of American Archivists, 2005).

Society of American Archivists. (2005). A Glossary of Archival and Records Terminology. Retrieved February 21, 2010, from

Computer-output microfilm: Copying electronic data from a computer onto microfilm or microfiche using laser technology and a film processor (Gavitt, 2000).

Gavitt, S. (2000).Computer output microfilm. New York State Archives: Archives Technical Information Series, 52. Retrieved February 17, 2010, from

Obsolescence: A state that occurs when software, hardware, or other media platform becomes outdated and is superseded by a new and superior object, service, practice, etc., which renders it difficult to use or completely unusable.

PREMIS: PREservation Metadata: Implementation Strategies. A preservation metadata standard that includes a data dictionary that defines a set of semantic units (pieces of information) institutions can use for digital preservation (Caplan, 2009).

Caplan, P. (2009). Understanding PREMIS. Library of Congress Network Development and MARC Standards Office, 1-26. Retrieved February 17, 2010, from

PURL: Persistent Uniform Resource Locator. A permanent identifier URL that redirects the user to an active page containing the resource the user is looking for (e.g., if a user types in a URL that has changed, the PURL will redirect to the current URL) (OCLC Bibliographic PURL Service). This allows the underlying web addresses of resources to change over time without negatively affecting systems that depend on them (OCLC PURL).

OCLC Bibliographic PURL Service website. Retrieved February 17, 2010, from

OCLC PURL website. Retrieved February 21, 2010, from

Refresh: A preservation method that entails copying data from an older media type onto a newer version of the same media type to avoid data loss due to media deterioration or replacement.

ERM: Electronic Resource Management. Systems used to manage and provide access to electronic resources, especially internet-based resources such as electronic journals, databases, and electronic books (Beals, 2008). The development of ERM became necessary in the early 2000s as it became clear that traditional library catalogs and integrated library systems were not designed to handle metadata for resources as mutable as many online products are (Electronic Resource Management, 2010).

Beals, N. (2008). Selecting and implementing an ERMS at Wayne State University: a case study. Journal of Electronic Resources Librarianship, 20(1), 62-69.

Electronic Resource Management. (2010). Retrieved February 21, 2010, from

Binary: Computer language based on “0s” and “1s” used to encode data in computer systems.

Legacy system: Outdated or obsolete technology and equipment that is still being used by an individual or organization, typically because it still functions for the users’ needs, even though newer technology or more efficient methods of performing a task are now available (Legacy Systems, 2010).

Legacy Systems. (2010). Retrieved February 22, 2010, from

Dark archive: A collection that is preserved for future use but is not currently accessible to users (Society of American Archivists, 2005).

Society of American Archivists. (2005). A Glossary of Archival and Records Terminology. Retrieved February 21, 2010, from

iRODS: i Rule Oriented Data Systems. A software system used for encoding customization of data management functions (IRODS, 2010) and organizing sharable data (Moore, 2009).

IRODS: Data Grids, Digital Libraries, Persistent Archives, and Real-time Data Systems website. (2010). Retrieved February 21, 2010, from

Moore, R. W., Rajasekar, A., Wan, M. (2009). iRODS policy-driven data preservation. Retrieved February 21, 2010, from

Generation: The reproduction cycles between a copy and its original material. The Society of American Archivists (2005) gives the example that a print made from a negative would be a first-generation copy, while a reproduction made from that print would be a second-generation copy.

Society of American Archivists. (2005).A Glossary of Archival and Records Terminology. Retrieved February 21, 2010, from

Open access: When copyright owners relinquish some of their copyright rights to allow unrestricted internet access to their materials (Anderson, 2006).

Anderson, B. (2006). A primer on copyright law and the DMCA. Reference Librarian, 45(93), 59-71.

Web crawler: An automated program that methodically scans the internet to create an index of information sources (Web Crawler, 2010).

Web Crawler. (2010). Retrieved February 22, 2010, from