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Implementation of the requirements in the electronic archive systems
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Friday, 11 December 2009
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- To fulfill these requirements archiving systems have been created consisting of databases, archive and storage systems, which are offered in Germany by many manufacturers and system integrators. These systems are mostly based on the approach, a reference database with the management and index criteria refer to an external memory, which kept the information objects. This so-called reference database architecture was needed to outsource large amounts of information from the fast but expensive, although on-line store into separate archival storage. The database allows the Index at all times to find the document again and to provide an appropriate display program to the user. In the early days of this technology is usually act to very closed, autonomous systems, leading to virtually "islands" in the IT landscape. Today archive systems are divided one as downstream services (→ Service Oriented Architecture) into the IT infrastructure, are directly served by office communications and specialized applications and these applications also provide the required information for processing and displaying available again. For the user, it is irrelevant, is stored and where the necessary information. The discussion about the "proper" storage medium for the electronic archiving usually carry only the IT professionals, project staff and legal departments when it comes to the selection and implementation of an electronic archive system.
- Functional requirements for an electronic archive system
- Electronic Archive systems are characterized by the following unique features:
program-, direct access to individual information objects, commonly referred to as documents or information collections, such as Lists, containers with multiple objects, etc.
database management of information objects based on metadata and full text where appropriate, developing the content of the archived information objects
Support for various indexing - and search strategies in order to directly access the required information to be able
Uniform and common storage of any information objects from scanned facsimile of document format files and e-mails to complex XML structures, lists, COLD documents or entire database contents
Management of storage systems with only one recordable media, including access to the media are no longer directly in the storage system
Amount to ensure the availability of information stored over a long period of time a matter of decades
Provision of information objects, regardless of the application they were originally generated at various clients and with transfer to other programs
Support for "class concept" to facilitate the acquisition by inheritance of characteristics and structuring of the information base
Converter to generate stable long-term archive formats and the viewer (engl. viewer) for the display of information objects for which the original native application is no longer available
Protection of the stored information objects against unauthorized access and changeability against the stored information
Comprehensive management of different storage systems, for example, to guaranteed by the cache (caches), quick access and speedy delivery of information
Standardized interfaces to integrate electronic archives as a service to any application to be able
Standalone restore functionality (recovery) in order to build has become inconsistent or disordered systems without loss in itself again to be able
Reliable logging of all changes to structures and information objects that may endanger the consistency and irretrievability and document how the information was processed in the archive system
To ensure support of standards for the special recording information on saving using WORM method for stored documents and information objects for descriptive metadata for long-term availability and migration, security
Support for automated, transparent and lossless migration procedures
All these properties should make it clear that it is not a traditional hierarchical storage management or backup. Electronic Archive systems are a class of its own, which includes as downstream services in any IT infrastructure.
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