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What is meant by the term "durable digital information?"
Durable digital information is both sustainable for the very long term and in active use. While Fedora is very suitable for use in building dark archives in which data is preserved but not used directly, it has been developed and optimized for use in building complex networks of digital information in which the history and stability of digital objects can be assured while providing them in a variety of contexts as appropriate to what is allowed by their owner.
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What kind of search functionality is provided by Fedora?
The "basic search" that is supplied with Fedora was intended to provide a simple tool for a repository manager to use in running an repository. A very minimal Dublin Core record is required for each object to provide the key metadata for managing objects, not for exposing to end users of the repository. We would strongly advise that the basic search that uses this Dublin Core not be exposed to the outside world. Details can be found here.
A better solution for end-user searching is to use the Generic Search (GSearch) service to provide one or more searchable indexes of content in a repository. GSearch provides for configuring indexes that use any component of object. Conditions can be set that determine which objects to include in any index and the integration with Fedora's messaging service provides for incremental indexing. Currently Lucene, Zebra and Solr can be used, and facilities are provided that make it possible to develop plugins for other engines. Details can be found here.
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What is a data object?
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