Data is the raw material with which the systems analyst works, developing procedures (which may be thought of as analogous to processing machinery) to forge the data into the end product -information Traditionally, each analyst was responsible for the collection and storage of the data for ‘his’ or ‘her’ applications; this approach was inherently wasteful because it led to duplication in collection and storage when the same data was required for different applications. More seriously, it caused inconsistencies between what was ostensibly the same data collected for different applications. Data collected in this way was difficult to use for any purpose other than that for which it was originally intended.
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