| 单词 | data flow chart |
| 释义 | data flow chart data flow chart(data flow diagram) A chart that illustrates the way in which specified data is handled by a computer program. Its purpose is to specify the data, to show where it is used or changed, where it is stored, and which reports use it. data integrity The accuracy, consistency, and completeness of the information held on a computer database. Data integrity can be compromised by human error (e.g. in inputting), software or mechanical faults, and system errors (e.g. inadequate procedures to make sure that changes made to local files are transferred to master files). Various checks, mechanisms, and standards have been developed to protect data integrity. |
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