DPTP Glossary 2018
DPTP Glossary 2017
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The quality of trustworthiness of a record; the assurance that a record is what it purports to be and has demonstrably not been tampered with or otherwise corrupted.
The zeros and ones that make up a data file, the “stream of bits”.
Bitstream preservation is the most basic technical layer of any digital preservation strategy. It could be adopted as the sole layer were the repository to confer responsibility for acquiring file- and representation-level access to future users of the material. This might be acceptable in some circumstances, but is not a reasonable approach to the preservation of personal digital archives, which are likely to be used by readers possessing a wide range of technical knowledge from negligible to expert. Nevertheless, digital archivists must address bitstream preservation as it forms the foundation for all other preservation strategies.
Digital materials which are not intended to have an analogue equivalent, either as the originating source or as a result of conversion to analogue form.This term has been used in the handbook to differentiate them from 1) digital materials which have been created as a result of converting analogue originals; and 2) digital materials, which may have originated from a digital source but have been printed to paper, e.g. some electronic records.
An algorithmically-computed numeric value for a file or a set of files used to validate the state and content of the file for the purpose of detecting accidental errors that may have been introduced during its transmission or storage. The integrity of the data can be checked at any later time by recomputing the checksum and comparing it with the stored one. If the checksums match, the data was almost certainly not altered.
Computer data is information processed or stored by a computer. This information may be in the form of text documents, images, audio clips, software programs, or other types of data.