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Stores and Repositories

Types of stores

Information in the digital library can be stored in many types of store, for example:

  • ftp archive
  • World Wide Web server
  • on-line database
  • A repository
    • A repository is a specific class of store which is particularly suited for material containing valuable information. The principal characteristics of a repository are shown in the diagram.

  • The repository stores both digital objects and associated properties and transaction logs.
  • An object may be stored in several repositories, either for replication or for caching.
  • The repository is responsible for secure storage. In addition, individual objects may be signed.
  • Every repository has an Information Retrieval server which has information about the objects in the repository. This server need not be part of the repository.
    • wya
    February 1, 1995