Difference between revisions of "Data system"
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A data system is | A '''data system''' is an organized collection of symbols ([[information]]) and the processes that may be used to operate on such symbols.<ref name="BISBD">{{cite book |url=http://books.google.com/books?id=pdUROgAACAAJ |title=Business Information Systems |author=Beynon-Davies, Paul |publisher=Palgrave Macmillan Limited |year=2009 |pages=512 |isbn=023020368X}}</ref><ref name="SigBD">{{cite book |url=http://books.google.com/books?id=IhTBbwAACAAJ |title=Significance: Exploring the Nature of Information, Systems and Technology |author=Beynon-Davies, Paul |publisher=Palgrave Macmillan Limited |year=2011 |pages=304 |isbn=0230275192}}</ref> Any organized collection of symbols and symbol-manipulating operations can be considered a data system. Hence, human speech analysed at the level of phonemes can be considered a data system, as can the Incan artifact of the khipu and an image stored as pixels. A data system is defined in terms of some data model and bears a resemblance to the idea of a physical symbol system. | ||
Symbols within some data system may be persistent or not. Hence, the sounds of human speech are non-persistent symbols because they decay rapidly in air. In contrast, pixels stored on some peripheral storage device are persistent symbols. | Symbols within some data system may be persistent or not. Hence, the sounds of human speech are non-persistent symbols because they decay rapidly in air. In contrast, pixels stored on some peripheral storage device are persistent symbols. | ||
Revision as of 22:53, 13 September 2013
A data system is an organized collection of symbols (information) and the processes that may be used to operate on such symbols.[1][2] Any organized collection of symbols and symbol-manipulating operations can be considered a data system. Hence, human speech analysed at the level of phonemes can be considered a data system, as can the Incan artifact of the khipu and an image stored as pixels. A data system is defined in terms of some data model and bears a resemblance to the idea of a physical symbol system.
Symbols within some data system may be persistent or not. Hence, the sounds of human speech are non-persistent symbols because they decay rapidly in air. In contrast, pixels stored on some peripheral storage device are persistent symbols.
References
- ↑ Beynon-Davies, Paul (2009). Business Information Systems. Palgrave Macmillan Limited. pp. 512. ISBN 023020368X. http://books.google.com/books?id=pdUROgAACAAJ.
- ↑ Beynon-Davies, Paul (2011). Significance: Exploring the Nature of Information, Systems and Technology. Palgrave Macmillan Limited. pp. 304. ISBN 0230275192. http://books.google.com/books?id=IhTBbwAACAAJ.
