This page will provide some insight into the National Library of New Zealand’s digital preservation programme.
To enable the National Library of New Zealand to meet its mandate to collect, make accessible, and preserve in perpetuity, New Zealand’s digital heritage, as defined by the Library's current collection policy (external link) .
Born digital and digitised items created or collected by the Library are held in the library’s digital preservation system, also referred to as the National Digital Heritage Archive (NDHA). A system that is responsible for the long-term preservation of the digital heritage is based on the NASA's Open Archival Information System (external link) (OAIS) reference model and runs on the ExLibris' Rosetta application (external link) .
The original National Digital Heritage Archive programme was established in 2004. Later in 2006 the Library formed a development partnership with Ex Libris (external link) to build a digital archive and preservation management system and the resulting Rosetta digital preservation system was launched in October 2008.
To date, the archive holds approximately 14m files, spanning across 188 different formats and consisting of approximately 200 Terabytes.
The National Library collects a wide range of digital material, such as websites, manuscripts, photographs, cartoons, annual reports and many digital publications. These items are actively collected under the National Library Act (2003) (external link) . The Library also receives public donations of digital material. The Library also has its own in-house image and sound digitisation programmes.
Digital materials are collected through a number of methods and work on both active and passive collection modes. Library staff actively collect materials from publishers’ websites. Content providers can also send materials directly to the Library through email and other mechanisms. Staff then use a desktop application (INDIGO) to deposit content and associated and metadata to Rosetta. This is also the method used for digitised material.
The Web Curator Tool (WCT) is used for acquiring web material such as websites, web pages, and other documents on the internet.
The Library uses systems ‘Tiaki’ (EMu) (external link) for unpublished and ‘Alma’ for published material for resource discovery and collection management. These collection management systems present links to resources held within the digital preservation system.
The collection management system is responsible for maintaining descriptive metadata and management information about objects within the digital preservation system.
The digital preservation system is responsible for managing the objects themselves from a technical perspective, ensuring that they are preserved and their integrity remains intact.
The digital preservation system in use at the the Library features a full set of preservation functionality. To learn more about the system go to the 'Preservation tools and manuals' section of this website.
The mandate of the Library is to actively preserve content. A full preservation programme is running with format migrations already undertaken on a number of different format types.
The digital preservation system is able to invoke various tools and utilities to support the preservation process, including:
The Library has its own dedicated data centre with discrete provision for the digital preservation programme. This is located outside of the Library and built to withstand one-in-hundred-year events.
We are also working with external organisations within New Zealand in regard to third party hosting and the potential for a whole-of-country approach to digital preservation. For more information on this go to Digital Preservation New Zealand page.
We are also involved in a number of international partnerships. To learn more go to the section Community Participation.